BUSINESS LOAN AGREEMENT

BORROWER: RADIUS INC.
          215 MOFFETT PARK DRIVE
          SUNNYVALE, CA  94089

LENDER:

          SILICON VALLEY BANK
          SANTA CLARA TECHNOLOGY
          3000 LAKESIDE DRIVE
          SANTA CLARA, CA  95054

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THIS BUSINESS LOAN AGREEMENT BETWEEN RADIUS INC. ("BORROWER") AND SILICON VALLEY
BANK ("LENDER") IS MADE AND EXECUTED ON THE FOLLOWING TERMS AND CONDITIONS.
BORROWER HAS RECEIVED PRIOR COMMERCIAL LOANS FROM LENDER OR HAS APPLIED TO
LENDER FOR A COMMERCIAL LOAN OR LOANS AND OTHER FINANCIAL ACCOMMODATIONS,
INCLUDING THOSE WHICH MAY BE DESCRIBED ON ANY EXHIBIT OR SCHEDULE ATTACHED TO
THIS AGREEMENT. ALL SUCH LOANS AND FINANCIAL ACCOMMODATIONS, TOGETHER WITH ALL
FUTURE LOANS AND FINANCIAL ACCOMMODATIONS FROM LENDER TO BORROWER, ARE REFERRED
TO IN THIS AGREEMENT INDIVIDUALLY AS THE "LOAN" AND COLLECTIVELY AS THE "LOANS."
BORROWER UNDERSTANDS AND AGREES THAT:  (A) IN GRANTING, RENEWING, OR EXTENDING
ANY LOAN, LENDER IS RELYING UPON BORROWER'S REPRESENTATIONS, WARRANTIES, AND
AGREEMENTS, AS SET FORTH IN THIS AGREEMENT;  (B) THE GRANTING, RENEWING, OR
EXTENDING OF ANY LOAN BY LENDER AT ALL TIMES SHALL BE SUBJECT TO LENDER'S SOLE
JUDGMENT AND DISCRETION; AND  (C) ALL SUCH LOANS SHALL BE AND SHALL REMAIN
SUBJECT TO THE FOLLOWING TERMS AND CONDITIONS OF THIS AGREEMENT.

TERM.  This Agreement shall be effective as of MARCH 20, 1995, and shall
continue thereafter until all Indebtedness of Borrower to Lender has been
performed in full and the parties terminate this Agreement in writing.

DEFINITIONS.  The following words shall have the following meanings when used in
this Agreement.  Terms not otherwise defined in this Agreement shall have the
meanings attributed to such terms in the Uniform Commercial Code.  All
references to dollar amounts shall mean amounts in lawful money of the United
States of America.

     AGREEMENT.  The word "Agreement" means this Business Loan Agreement, as
     this Business Loan Agreement may be amended or modified from time to time,
     together with all exhibits and schedules attached to this Business Loan
     Agreement from time to time.

     BORROWER.  The word "Borrower" means RADIUS INC..  The word "Borrower" also
     includes, as applicable, all subsidiaries and affiliates of Borrower as
     provided below in the paragraph titled "Subsidiaries and Affiliates."

     CERCLA.  The word "CERCLA" means the Comprehensive Environmental Response,
     Compensation, and Liability Act of 1980, as amended.


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     CASH FLOW.  The words "Cash Flow" mean net income after taxes, and
     exclusive of extraordinary gains and income, plus depreciation and
     amortization.


     COLLATERAL.  The word "Collateral" means and includes without limitation
     all property and assets granted as collateral security for a Loan, whether
     real or personal property, whether granted directly or indirectly, whether
     granted now or in the future, and whether granted in the form of a security
     interest, mortgage, deed of trust, assignment, pledge, chattel mortgage,
     chattel trust, factor's lien, equipment trust, conditional sale, trust
     receipt, lien, charge, lien or title retention contract, lease or
     consignment intended as a security device, or any other security or lien
     interest whatsoever, whether created by law, contract, or otherwise.

     DEBT.  The word "Debt" means all of Borrower's liabilities excluding
     Subordinated Debt.

     ERISA.  The word "ERISA" means the Employee Retirement Income Security Act
     of 1974, as amended.

     EVENT OF DEFAULT.  The words "Event of Default" mean and include without
     limitation any of the Events of Default set forth below in the section
     titled "EVENTS OF DEFAULT."

     GRANTOR.  The word "Grantor" means and includes without limitation each and
     all of the persons or entities granting a Security Interest in any
     Collateral for the Indebtedness, including without limitation all Borrowers
     granting such a Security Interest.

     GUARANTOR.  The word "Guarantor" means and includes without limitation each
     and all of the guarantors, sureties, and accommodation parties in
     connection with any Indebtedness.

     INDEBTEDNESS.  The word "Indebtedness" means and includes without
     limitation all Loans, together with all other obligations, debts and
     liabilities of Borrower to Lender, or any one or more of them, as well as
     all claims by Lender against Borrower, or any one or more of them; whether
     now or hereafter existing, voluntary or involuntary, due or not due,
     absolute or contingent, liquidated or unliquidated; whether Borrower may be
     liable individually or jointly with others; whether Borrower may be
     obligated as a guarantor, surety, or otherwise; whether recovery upon such
     Indebtedness may be or hereafter may become barred by any statute of
     limitations; and whether such Indebtedness may be or hereafter may become
     otherwise unenforceable.

     LENDER.  The word "Lender" means Silicon Valley Bank, its successors and
     assigns.

     LIQUID ASSETS.  The words "Liquid Assets" mean Borrower's cash on hand plus
     Borrower's receivables.

     LOAN.  The word "Loan" or "Loans" means and includes without limitation any
     and all commercial loans and financial accommodations from Lender to
     Borrower, whether now or hereafter existing, and however evidenced,
     including without limitation those loans and financial accommodations
     described herein or described on any exhibit or schedule attached to this
     Agreement from time to time.

     NOTE.  The word "Note" means and includes without limitation Borrower's
     promissory note or notes, if any, evidencing Borrower's Loan obligations in
     favor of Lender, as well as any substitute, replacement or refinancing note
     or notes therefor.


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                             BUSINESS LOAN AGREEMENT
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     RELATED DOCUMENTS.  The words "Related Documents" mean and include without
     limitation all promissory notes, credit agreements, loan agreements,
     environmental agreements, guaranties, security agreements, mortgages, deeds
     of trust, and all other instruments, agreements and documents, whether now
     or hereafter existing, executed in connection with the Indebtedness.

     SECURITY AGREEMENT.  The words "Security Agreement" mean and include
     without limitation any agreements, promises, covenants, arrangements,
     understandings or other agreements, whether created by law, contract, or
     otherwise, evidencing, governing, representing, or creating a Security
     Interest.

     SECURITY INTEREST.  The words "Security Interest" mean and include without
     limitation any type of collateral security, whether in the form of a lien,
     charge, mortgage, deed of trust, assignment, pledge, chattel mortgage,
     chattel trust, factor's lien, equipment trust, conditional sale, trust
     receipt, lien or title retention contract, lease or consignment intended as
     a security device, or any other security or lien interest whatsoever,
     whether created by law, contract, or otherwise.

     SARA.  The word "SARA" means the Superfund Amendments and Reauthorization
     Act of 1986 as now or hereafter amended.

     SUBORDINATED DEBT.  The words "Subordinated Debt" mean indebtedness and
     liabilities of Borrower which have been subordinated by written agreement
     to indebtedness owed by Borrower to Lender in form and substance acceptable
     to Lender.

     TANGIBLE NET WORTH.  The words "Tangible Net Worth" mean Borrower's total
     assets excluding all intangible assets (i.e., goodwill, trademarks,
     patents, copyrights, organizational expenses, and similar intangible items,
     but including leaseholds and leasehold improvements) less total Debt.

     WORKING CAPITAL.  The words "Working Capital" mean Borrower's current
     assets, excluding prepaid expenses, less Borrower's current liabilities.

REPRESENTATIONS AND WARRANTIES.  Borrower represents and warrants to Lender as
of the date of this Agreement and as of the date of each disbursement of Loan
proceeds:

     ORGANIZATION.  Borrower is a corporation which is duly organized, validly
     existing, and in good standing under the laws of the State of California.
     Borrower has the full power and authority to own its properties and to
     transact the businesses in which it is presently engaged or presently
     proposes to engage.  Borrower also is duly qualified as a foreign
     corporation and is in good standing in all states in which the failure to
     so qualify would have a material adverse effect on its businesses or
     financial condition.

     AUTHORIZATION.  The execution, delivery, and performance of this Agreement
     and all Related Documents by Borrower, to the extent to be executed,
     delivered or performed by Borrower, have been duly authorized by all
     necessary action by Borrower; do not require the consent or approval of any
     other person, regulatory authority or governmental body; and do not
     conflict with, result in a violation of, or constitute a default under  (a)
     any provision of its articles of incorporation or


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                             BUSINESS LOAN AGREEMENT
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     organization, or bylaws, or any agreement or other instrument binding upon
     Borrower or  (b) any law, governmental regulation, court decree, or order
     applicable to Borrower.

     FINANCIAL INFORMATION.  Each financial statement of Borrower supplied to
     Lender truly and completely disclosed Borrower's financial condition as of
     the date of the statement, and there has been no material adverse change in
     Borrower's financial condition subsequent to the date of the most recent
     financial statement supplied to Lender.  Borrower has no material
     contingent obligations except as disclosed in such financial statements.

     LEGAL EFFECT.  This Agreement constitutes, and any instrument or agreement
     required hereunder to be given by Borrower when delivered will constitute,
     legal, valid and binding obligations of Borrower enforceable against
     Borrower in accordance with their respective terms.

     PROPERTIES.  Except as contemplated by this Agreement or as previously
     disclosed in Borrower's financial statements or in writing to Lender and as
     accepted by Lender, and except for property tax liens for taxes not
     presently due and payable, Borrower owns and has good title to all of
     Borrower's properties free and clear of all Security Interests, and has not
     executed any security documents or financing statements relating to such
     properties.  All of Borrower's properties are titled in Borrower's legal
     name, and Borrower has not used, or filed a financing statement under, any
     other name for at least the last five (5) years.

     HAZARDOUS SUBSTANCES.  The terms "hazardous waste," "hazardous substance,"
     "disposal," "release," and "threatened release," as used in this Agreement,
     shall have the same meanings as set forth in the "CERCLA," "SARA," the
     Hazardous Materials Transportation Act, 49 U.S.C. Section 1801, et seq.,
     the Resource Conservation and Recovery Act, 49 U.S.C. Section 6901, et
     seq., Chapters 6.5 through 7.7 of Division 20 of the California Health and
     Safety Code, Section 25100, et seq., or other applicable state or Federal
     laws, rules, or regulations adopted pursuant to any of the foregoing.
     Except as disclosed to and acknowledged by Lender in writing, Borrower
     represents and warrants that:  (a) During the period of Borrower's
     ownership of the properties, there has been no use, generation,
     manufacture, storage, treatment, disposal, release or threatened release of
     any hazardous waste or substance by any person on, under, or about any of
     the properties.  (b) Borrower has no knowledge of, or reason to believe
     that there has been  (i) any use, generation, manufacture, storage,
     treatment, disposal, release, or threatened release of any hazardous waste
     or substance by any prior owners or occupants of any of the properties, or
     (ii) any actual or threatened litigation or claims of any kind by any
     person relating to such matters.  (c) Neither Borrower nor any tenant,
     contractor, agent or other authorized user of any of the properties shall
     use, generate, manufacture, store, treat, dispose of, or release any
     hazardous waste or substance on, under, or about any of the properties; and
     any such activity shall be conducted in compliance with all applicable
     federal, state, and local laws, regulations, and ordinances, including
     without limitation those laws, regulations and ordinances described above.
     Borrower authorizes Lender and its agents to enter upon the properties to
     make such inspections and tests as Lender may deem appropriate to determine
     compliance of the properties with this section of the Agreement.  Any
     inspections or tests made by Lender shall be at Borrower's expense and for
     Lender's purposes only and shall not be construed to create any
     responsibility or liability on the part of Lender to Borrower or to any
     other person.  The representations and warranties contained herein are
     based on Borrower's due diligence in investigating the properties for
     hazardous waste.  Borrower hereby  (a) releases and waives any future
     claims against Lender for indemnity or contribution in the event Borrower
     becomes liable for


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                             BUSINESS LOAN AGREEMENT
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     cleanup or other costs under any such laws, and  (b) agrees to indemnify
     and hold harmless Lender against any and all claims, losses, liabilities,
     damages, penalties, and expenses which Lender may directly or indirectly
     sustain or suffer resulting from a breach of this section of the Agreement
     or as a consequence of any use, generation, manufacture, storage, disposal,
     release or threatened release occurring prior to Borrower's ownership or
     interest in the properties, whether or not the same was or should have been
     known to Borrower. The provisions of this section of the Agreement,
     including the obligation to indemnify, shall survive the payment of the
     Indebtedness and the termination or expiration of this Agreement and shall
     not be affected by Lender's acquisition of any interest in any of the
     properties, whether by foreclosure or otherwise.

     LITIGATION AND CLAIMS.  No litigation, claim, investigation, administrative
     proceeding or similar action (including those for unpaid taxes) against
     Borrower is pending or threatened, and no other event has occurred which
     may materially adversely affect Borrower's financial condition or
     properties, other than litigation, claims, or other events, if any, that
     have been disclosed to and acknowledged by Lender in writing.

     TAXES.  To the best of Borrower's knowledge, all tax returns and reports of
     Borrower that are or were required to be filed, have been filed, and all
     taxes, assessments and other governmental charges have been paid in full,
     except those presently being or to be contested by Borrower in good faith
     in the ordinary course of business and for which adequate reserves have
     been provided.

     LIEN PRIORITY.  Unless otherwise previously disclosed to Lender in writing,
     Borrower has not entered into or granted any Security Agreements, or
     permitted the filing or attachment of any Security Interests on or
     affecting any of the Collateral directly or indirectly securing repayment
     of Borrower's Loan and Note, that would be prior or that may in any way be
     superior to Lender's Security Interests and rights in and to such
     Collateral.

     BINDING EFFECT.  This Agreement, the Note and all Security Agreements
     directly or indirectly securing repayment of Borrower's Loan and Note are
     binding upon Borrower as well as upon Borrower's successors,
     representatives and assigns, and are legally enforceable in accordance with
     their respective terms.

     COMMERCIAL PURPOSES.  Borrower intends to use the Loan proceeds solely for
     business or commercial related purposes.

     EMPLOYEE BENEFIT PLANS.  Each employee benefit plan as to which Borrower
     may have any liability complies in all material respects with all
     applicable requirements of law and regulations, and  (i) no Reportable
     Event nor Prohibited Transaction (as defined in ERISA) has occurred with
     respect to any such plan,  (ii) Borrower has not withdrawn from any such
     plan or initiated steps to do so, and  (iii) no steps have been taken to
     terminate any such plan.

     LOCATION OF BORROWER'S OFFICES AND RECORDS.  The chief place of business of
     Borrower and the office or offices where Borrower keeps its records
     concerning the Collateral is located at 215 Moffett Park Drive, Sunnyvale,
     CA  94089.

     INFORMATION.  All information heretofore or contemporaneously herewith
     furnished by Borrower to Lender for the purposes of or in connection with
     this Agreement or any transaction contemplated


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                             BUSINESS LOAN AGREEMENT
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     hereby is, and all information hereafter furnished by or on behalf of
     Borrower to Lender will be, true and accurate in every material respect on
     the date as of which such information is dated or certified; and none of
     such information is or will be incomplete by omitting to state any material
     fact necessary to make such information not misleading.

     SURVIVAL OF REPRESENTATION AND WARRANTIES.  Borrower understands and agrees
     that Lender is relying upon the above representations and warranties in
     extending Loan Advances to Borrower.  Borrower further agrees that the
     foregoing representations and warranties shall be continuing in nature and
     shall remain in full force and effect until such time as Borrower's Loan
     and Note shall be paid in full, or until this Agreement shall be terminated
     in the manner provided above, whichever is the last to occur.

AFFIRMATIVE COVENANTS.  Borrower covenants and agrees with Lender that, while
this Agreement is in effect, Borrower will:

     LITIGATION.  Promptly inform Lender in writing of  (a) all material adverse
     changes in Borrower's financial condition, and  (b) all litigation and
     claims and all threatened litigation and claims affecting Borrower or any
     Guarantor which could materially affect the financial condition of Borrower
     or the financial condition of any Guarantor.

     FINANCIAL RECORDS.  Maintain its books and records in accordance with
     generally accepted accounting principles, applied on a consistent basis,
     and permit Lender to examine and audit Borrower's books and records at all
     reasonable times.

     FINANCIAL STATEMENTS.  Furnish Lender with, as soon as available, but in no
     event later than ninety (90) days after the end of each fiscal year,
     Borrower's balance sheet and income statement for the year ended, audited
     by a certified public accountant satisfactory to Lender, and, as soon as
     available, but in no event later than thirty (30) days after the end of
     each month, Borrower's balance sheet and profit and loss statement for the
     period ended, prepared and certified as correct to the best knowledge and
     belief by Borrower's chief financial officer or other officer or person
     acceptable to Lender.  Borrower shall also furnish Lender, as soon as
     available, but in no event later than 5 days of filing with the Securities
     and Exchange Commission, Borrower's 10Q and 10K reports.  All financial
     reports required to be provided under this Agreement shall be prepared in
     accordance with generally accepted accounting principles, applied on a
     consistent basis, and certified by Borrower as being true and correct.

     ADDITIONAL INFORMATION.  Furnish such additional information and
     statements, lists of assets and liabilities, agings of receivables and
     payables, inventory schedules, budgets, forecasts, tax returns, and other
     reports with respect to Borrower's financial condition and business
     operations as Lender may request from time to time.

     FINANCIAL COVENANTS AND RATIOS.  Comply with the following covenants and
     ratios:

     Maintain on a quarterly basis, beginning March 31, 1995, a minimum quick
     ratio of 0.75 to 1.00; a minimum tangible net worth plus subordinated debt
     of $35,000,000.00; and a maximum total debt minus subordinated debt to
     tangible net worth plus subordinated debt ratio of 3.00 to 1.00.


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                             BUSINESS LOAN AGREEMENT
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     For purposes of this Agreement and to the extent the following terms are
     utilized in this Agreement, the term "Tangible Net Worth" shall mean
     Borrower's total assets excluding all intangible assets (i.e., goodwill,
     trademarks, patents, copyrights, organizational expenses, and similar
     intangible items, but including leaseholds and leasehold improvements) less
     total Debt.  The term "Debt" shall mean all of Borrower's liabilities
     excluding Subordinated Debt.  The term "Subordinated Debt" shall mean
     indebtedness and liabilities of Borrower which have been subordinated by
     written agreement to indebtedness owed by Borrower to Lender in form and
     substance acceptable to Lender.  The term "Working Capital" shall mean
     Borrower's current assets, excluding prepaid expenses, less Borrower's
     current liabilities.  The term "Liquid Assets" shall mean Borrower's cash
     on hand plus Borrower's receivables.  The term "Cash Flow" shall mean net
     income after taxes, and exclusive of extraordinary gains and income, plus
     depreciation and amortization.  Except as provided above, all computations
     made to determine compliance with the requirements contained in this
     paragraph shall be made in accordance with generally accepted accounting
     principles, applied on a consistent basis, and certified by Borrower as
     being true and correct.

     INSURANCE.  Maintain fire and other risk insurance, public liability
     insurance, and such other insurance in form, amounts, coverages and with
     insurance companies and of a type that are customary to businesses similar
     to Borrower's, and maintain with respect to Borrower's properties and
     operations, in such form, amounts, coverages and with insurance companies,
     as ordinarily maintained by other owners in similar businesses conducted in
     the locations where Borrower's business is conducted on the date hereof.
     Borrower, upon request of Lender, will deliver to Lender from time to time
     the policies or certificates of insurance in form satisfactory to Lender,
     including stipulations that coverages will not be cancelled or diminished
     without at least ten (10) days' prior written notice to Lender.  Each
     insurance policy also shall include an endorsement providing that coverage
     in favor of Lender will not be impaired in any way by any act, omission or
     default of Borrower or any other person.  In connection with all policies
     covering assets in which Lender holds or is offered a security interest for
     the Loans, Borrower will provide Lender with such loss payable or other
     endorsements as Lender may require.

     INSURANCE REPORTS.  Furnish to Lender, upon request of Lender, reports on
     each existing insurance policy showing such information as Lender may
     reasonably request, including without limitation the following:  (a) the
     name of the insurer;  (b) the risks insured;  (c) the amount of the policy;
     (d) the properties insured;  (e) the then current property values on the
     basis of which insurance has been obtained, and the manner of determining
     those values; and  (f) the expiration date of the policy.  In addition,
     upon request of Lender (however not more often than annually), Borrower
     will have an independent appraiser satisfactory to Lender determine, as
     applicable, the actual cash value or replacement cost of any Collateral.

     OTHER AGREEMENTS.  Comply with all material terms and conditions of all
     other material agreements, whether now or hereafter existing, between
     Borrower and any other party and notify Lender immediately in writing of
     any default in connection with any other such agreements.

     LOAN PROCEEDS.  Use all Loan proceeds solely for Borrower's business
     operations, unless specifically consented to the contrary by Lender in
     writing.

     TAXES, CHARGES AND LIENS.  Pay and discharge when due all of its
     indebtedness and obligations, including without limitation all assessments,
     taxes, governmental charges, levies and liens, of every


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                             BUSINESS LOAN AGREEMENT
                                    CONTINUED

kind and nature, imposed upon Borrower or its properties, income, or profits,
prior to the date on which penalties would attach, and all lawful claims that,
if unpaid, might become a lien or charge upon any of Borrower's properties,
income, or profits.  Provided however, Borrower will not be required to pay and
discharge any such assessment, tax, charge, levy, lien or claim so long as  (a)
the legality of the same shall be contested in good faith by appropriate
proceedings, and  (b) Borrower shall have established on its books adequate
reserves with respect to such contested assessment, tax, charge, levy, lien, or
claim in accordance with generally accepted accounting practices.  Borrower,
upon demand of Lender, will furnish to Lender evidence of payment of the
assessments, taxes, charges, levies, liens and claims and will authorize the
appropriate governmental official to deliver to Lender at any time a written
statement of any assessments, taxes, charges, levies, liens and claims against
Borrower's properties, income, or profits.


     LOCKBOX ACCOUNT.  Borrower shall enter into and maintain a lockbox
     agreement with Lender and a contingent blocked account amendment to the
     lockbox agreement with Lender for the benefit of IBM Credit Corporation.

     PERFORMANCE.  Perform and comply with all terms, conditions, and provisions
     set forth in this Agreement and in all other instruments and agreements
     between Borrower and Lender, including without limitation, an Intercreditor
     Agreement between Borrower, Lender and IBM Credit Corp., in a timely
     manner, and promptly notify Lender if Borrower learns of the occurrence of
     any event which constitutes an Event of Default under this Agreement.

     OPERATIONS.  Notify Lender of substantial changes in its present executive
     and management personnel; conduct its business affairs in a reasonable and
     prudent manner and in compliance with all applicable federal, state and
     municipal laws, ordinances, rules and regulations respecting its
     properties, charters, businesses and operations, including without
     limitation, compliance with the Americans With Disabilities Act and with
     all minimum funding standards and other requirements of ERISA and other
     laws applicable to Borrower's employee benefit plans.

     INSPECTION.  Permit employees or agents of Lender at any reasonable time to
     inspect any and all Collateral for the Loan or Loans and Borrower's other
     properties and to examine or audit Borrower's books, accounts, and records
     and to make copies and memoranda of Borrower's books, accounts, and
     records.  If Borrower now or at any time hereafter maintains any records
     (including without limitation computer generated records and computer
     software programs for the generation of such records) in the possession of
     a third party, Borrower, upon request of Lender, shall notify such party to
     permit Lender free access to such records at all reasonable times and to
     provide Lender with copies of any records it may request, all at Borrower's
     expense.

     COMPLIANCE CERTIFICATE.  Unless waived in writing by Lender, provide Lender
     NO LATER THAN 30 DAYS AFTER THE END OF EACH MONTH and at the time of each
     disbursement of Loan proceeds with a certificate executed by Borrower's
     chief financial officer, or other officer or person acceptable to Lender,
     certifying that the representations and warranties set forth in this
     Agreement are true and correct as of the date of the certificate and
     further certifying that, as of the date of the certificate, no Event of
     Default exists under this Agreement.


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                             BUSINESS LOAN AGREEMENT
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     ENVIRONMENTAL COMPLIANCE AND REPORTS.  Borrower shall comply in all
     respects with all environmental protection federal, state and local laws,
     statutes, regulations and ordinances; not cause or permit to exist, as a
     result of an intentional or unintentional action or omission on its part or
     on the part of any third party, on property owned and/or occupied by
     Borrower, any environmental activity where damage may result to the
     environment, unless such environmental activity is pursuant to and in
     compliance with the conditions of a permit issued by the appropriate
     federal, state or local governmental authorities; shall furnish to Lender
     promptly and in any event within thirty (30) days after receipt thereof a
     copy of any notice, summons, lien, citation, directive, letter or other
     communication from any governmental agency or instrumentality concerning
     any intentional or unintentional action or omission on Borrower's part in
     connection with any environmental activity whether or not there is damage
     to the environment and/or other natural resources.

     ACCOUNTS RECEIVABLE AND ACCOUNTS PAYABLE.  Provide to Lender not later than
     15 days after and as of the end of each month, with a Borrowing Base
     Certificate and aged lists of accounts receivable and accounts payable.
     Initial and annual accounts receivable audits to be performed by Lender's
     agent.  Borrower's deposit account will be debited for the audit expense
     and a notification will be mailed to Borrower.

     ADDITIONAL ASSURANCES.  Make, execute and deliver to Lender such promissory
     notes, mortgages, deeds of trust, security agreements, financing
     statements, instruments, documents and other agreements as Lender or its
     attorneys may reasonably request to evidence and secure the Loans and to
     perfect all Security Interests.

NEGATIVE COVENANTS.  Borrower covenants and agrees with Lender that while this
Agreement is in effect, Borrower shall not, without the prior written consent of
Lender:

     INDEBTEDNESS AND LIENS.  (a) Except for trade debt incurred in the normal
     course of business and indebtedness to Lender contemplated by this
     Agreement, create, incur or assume indebtedness for borrowed money,
     including capital leases; provided, however, that Borrower may enter into
     capital leases not to exceed an aggregate amount of $10,000,000.00 at any
     one time,  (b) sell, transfer, mortgage, assign, pledge, lease, grant a
     security interest in, or encumber any of Borrower's assets (other than any
     sale of obsolete inventory in the ordinary course of business and any
     licenses of technology in the ordinary course of business), or  (c) sell
     with recourse any of Borrower's accounts, except to Lender.

     CONTINUITY OF OPERATIONS.  (a) Engage in any business activities
     substantially different than those in which Borrower is presently engaged,
     it being understood that the manufacture and/or sale of "Apple clones"
     pursuant to the Macintosh operating system license in favor of Borrower
     shall not constitute a business activity substantially different from that
     presently being  conducted by Borrower (b) cease operations, liquidate,
     merge, transfer, acquire or consolidate with any other entity, change
     ownership, dissolve or transfer or sell Collateral out of the ordinary
     course of business, provided, however, that Borrower may sell obsolete
     inventory in the ordinary course of business, (c) pay any dividends on
     Borrower's stock (other than dividends payable in its stock), provided,
     however that notwithstanding the foregoing, but only so long as no Event of
     Default has occurred and is continuing or would result from the payment of
     dividends, if Borrower is a "Subchapter S Corporation" (as defined in the
     Internal Revenue Code of 1986, as amended), Borrower may pay cash dividends
     on its stock to its shareholders from time to time in amounts necessary to
     enable the shareholders to


                                        9


                             BUSINESS LOAN AGREEMENT
                                    CONTINUED

     pay income taxes and make estimated income tax payments to satisfy their
     liabilities under federal and state law which arise solely from their
     status as Shareholders of a Subchapter S Corporation because of their
     ownership of shares of stock of Borrower, or (d) purchase or retire any of
     Borrower's outstanding shares, provided, however, that Borrower may
     purchase for cash from directors, officers and employees of Borrower shares
     of capital stock in connection with the termination of any such director's,
     officer's or employee's service to Borrower to the extent such purchases
     are consistent with past practices (which may not be changed without
     Lender's prior consent) and are in an aggregate amount not exceeding five
     hundred thousand dollars ($500,000.00) per annum, or alter or amend
     Borrower's capital structure.

     LOANS, ACQUISITIONS AND GUARANTIES.  (a) Loan, invest in or advance money
     or assets,  (b) purchase, create or acquire any interest in any other
     enterprise or entity, or  (c) incur any obligation as surety or guarantor
     other than in the ordinary course of business.

CESSATION OF ADVANCES.  If Lender has made any commitment to make any Loan to
Borrower, whether under this Agreement or under any other agreement, Lender
shall have no obligation to make Loan Advances or to disburse Loan proceeds if:
(a) Borrower or any Guarantor is in default under the terms of this Agreement or
any of the Related Documents or any other agreement that Borrower or any
Guarantor has with Lender;  (b) Borrower becomes insolvent, files a petition in
bankruptcy or similar proceedings, or is adjudged a bankrupt;  (c) there occurs
a material adverse change in Borrower's financial condition, in the financial
condition of any Guarantor, or in the value of any Collateral securing any Loan;
or  (d) any Guarantor seeks, claims or otherwise attempts to limit, modify or
revoke such Guarantor's guaranty of the Loan or any other loan with Lender.

LOAN ADVANCES.  Lender, in its discretion, will make loans to Borrower, in
amounts determined by Lender, up to the amounts as defined and permitted in the
Agreement and Related Documents, including but not limited to any Promissory
Notes, executed by Borrower (the "Credit Limit").  The Borrower is responsible
for monitoring the total amount of Loans and Indebtedness outstanding from time
to time, and Borrower shall not permit the same, at any time to exceed the
Credit Limit.  If at any time the total of all outstanding Loans and
Indebtedness exceeds the Credit Limit, the Borrower shall immediately pay the
amount of the excess to Lender, without notice or demand.

DEFAULT RATE.  Upon default, including failure to pay upon final maturity,
Lender, at its option, may do one or both of the following:  (a) increase the
variable interest rate on the Note to five percentage points (5.000%) over the
Interest Rate otherwise payable thereunder, and (b) add any unpaid accrued
interest to principal and such sum will bear interest therefrom until paid at
the rate provided in the Note.

BORROWING BASE FORMULA.  Funds shall be advanced under the Note according to a
borrowing base formula, as determined by Lender on a monthly basis, defined as
follows:  the lesser of (i) $5,000,000.00 or (ii) the sum of forty percent (40%)
of eligible foreign accounts receivable minus (a) the aggregate outstanding face
amount of letters of credit issued under the Note, and (b) the aggregate
outstanding gross amount of all Exchange Contracts.  Eligible foreign accounts
receivable shall include, but not be limited to, those accounts outstanding less
than 90 days from the date of invoice, excluding all Canadian, government,
contra and intercompany accounts; and exclude accounts wherein 50% or more of
the account is outstanding more than 90 days from the date of invoice.  Any
account which alone exceeds 25% of total accounts will be ineligible to the
extent said account exceeds 25% of total accounts. Also exclude any credit
balances which are aged


                                       10


                             BUSINESS LOAN AGREEMENT
                                    CONTINUED

past 90 days.  Also ineligible are any accounts which Lender in its sole
judgment excludes for valid credit reasons.

LETTERS OF CREDIT.   Subject to the terms of this Agreement, Lender shall issue
or cause to be issued under the Note standby and commercial letters of credit
for the account of Borrower for international sales.  Each such letter of credit
shall have an expiry date of no later than March 19, 1996.  All such letters of
credit shall be, in form and substance, acceptable to Lender in its sole
discretion and shall be subject to the terms and conditions of Lender's form
application and letter of credit agreement.

FOREIGN EXCHANGE.  Subject to the terms of this Agreement, Borrower may utilize
up to $5,000,000.00 for spot and future foreign exchange contracts (the
"Exchange Contracts").  All Exchange Contracts must provide for delivery of
settlement on or before March 19, 1996.  The limit available at any time shall
be reduced by the following amounts (the "Foreign Exchange Reserve") on each day
(the "Determination Date"):  (i) on all outstanding Exchange Contracts on which
delivery is to be effected or settlement allowed more than two business days
from the Determination Date, 10% of the gross amount of the Exchange Contracts;
plus (ii) on all outstanding Exchange Contracts on which delivery is to be
effected or settlement allowed within two business days after the Determination
Date, 100% of the gross amount of the Exchange Contracts.  In lieu of the
Foreign Exchange Reserve for 100% of the gross amount of any Exchange Contract,
the Borrower may request that Lender debit Borrower's bank account with Lender
for such amount, provided Borrower has immediately available funds in such
amounts in its bank account.

Lender may, in its discretion, terminate the Exchange Contracts at any time (a)
that an Event of Default occurs or (b) that there is no sufficient availability
under the Note and Borrower does not have available funds in its bank account to
satisfy the Foreign Exchange Reserve.  If Lender terminates the Exchange
Contracts, and without limitation of the FX Indemnity Provisions (as referred to
below), Borrower agrees to reimburse Lender for any and all fees, costs and
expenses relating thereto or arising in connection therewith.

Borrower shall not permit the total gross amount of all Exchange Contracts on
which delivery is to be effected and settlement allowed in any two business day
period to be more than $5,000,000.00 nor shall Borrower permit the total gross
amount of all Exchange Contracts to which Borrower is a party, outstanding at
any one time, to exceed $5,000,000.00.

Borrower shall execute all standard form applications and agreements of Lender
in connection with the Exchange Contracts, and without limiting any of the terms
of such applications and agreements, Borrower will pay all standard fees and
charges of Lender in connection with the Exchange Contracts.

Without limiting any of the other terms of this Agreement or any such standard
form applications and agreement of Lender, Borrower agrees to indemnify Lender
and hold it harmless, from and against any and all claims, debts, liabilities,
demands, obligations, actions, costs and expenses (including, without
limitation, attorneys fees of counsel of Lender's choice), of every nature and
description which it may sustain or incur, based upon, arising out of, or in any
way relating to any of the Exchange Contracts or any transactions relating
thereto or contemplated thereby (collectively referred to as the "FX Indemnity
Provisions").

EVENTS OF DEFAULT.  Each of the following shall constitute an Event of Default
under this Agreement:

     DEFAULT ON INDEBTEDNESS.  Failure of Borrower to make any payment when due
     on the Loans.


                                       11



                             BUSINESS LOAN AGREEMENT
                                    CONTINUED

     OTHER DEFAULTS.  Failure of Borrower or any Grantor to comply with or to
     perform when due any other term, obligation, covenant or condition
     contained in this Agreement or in any of the Related Documents, or failure
     of Borrower to comply with or to perform any other term, obligation,
     covenant or condition contained in any other agreement between Lender and
     Borrower.

     DEFAULT IN FAVOR OF THIRD PARTIES.  Should Borrower or any Grantor default
     under any loan, extension of credit, security agreement, purchase or sales
     agreement, or any other agreement, in favor of any other creditor or person
     that may materially affect any of Borrower's property or Borrower's or any
     Grantor's ability to repay the Loans or perform their respective
     obligations under this Agreement or any of the Related Documents,
     including, without limitation, any default by Borrower under any agreement
     between Borrower and IBM Credit Corporation.

     FALSE STATEMENTS.  Any warranty, representation or statement made or
     furnished to Lender by or on behalf of Borrower or any Grantor under this
     Agreement or the Related Documents is false or misleading in any material
     respect, either now or at the time made or furnished.

     DEFECTIVE COLLATERALIZATION.  This Agreement or any of the Related
     Documents ceases to be in full force and effect (including failure of any
     Security Agreement to create a valid and perfected Security Interest) at
     any time and for any reason.

     INSOLVENCY.  The dissolution or termination of Borrower's existence as a
     going business, the insolvency of Borrower, the appointment of a receiver
     for any part of Borrower's property, any assignment for the benefit of
     creditors, any type of creditor workout, or the commencement of any
     proceeding under any bankruptcy or insolvency laws by or against Borrower.

     CREDITOR OR FORFEITURE PROCEEDINGS.  Commencement of foreclosure or
     forfeiture proceedings, whether by judicial proceeding, self-help,
     repossession or any other method, by any creditor of Borrower, any creditor
     of any Grantor against any collateral securing the Indebtedness, or by any
     governmental agency.  This includes a garnishment, attachment, or levy on
     or of any of Borrower's deposit accounts with Lender.

     EVENTS AFFECTING GUARANTOR.  Any of the preceding events occurs with
     respect to any Guarantor of any of the Indebtedness or such Guarantor dies
     or becomes incompetent or any Guarantor revokes any guaranty of the
     Indebtedness.

     CHANGE IN OWNERSHIP.  Any change in ownership of twenty-five percent (25%)
     or more of the common stock of Borrower.

EFFECT OF AN EVENT OF DEFAULT.  If any Event of Default shall occur, all
commitments and obligations of Lender under this Agreement or the Related
Documents or any other agreement immediately will terminate (including any
obligation to make Loan Advances or disbursements), and, at Lender's option, all
Loans immediately will become due and payable, all without notice of any kind to
Borrower, except that in the case of an Event of Default of the type described
in the "Insolvency" subsection above, such acceleration shall be automatic and
not optional.

MISCELLANEOUS PROVISIONS.  The following miscellaneous provisions are a part of
this Agreement:


                                       12



                             BUSINESS LOAN AGREEMENT
                                    CONTINUED

     AMENDMENTS.  This Agreement, together with any Related Documents,
     constitutes the entire understanding and agreement of the parties as to the
     matters set forth in this Agreement.  No alteration of or amendment to this
     Agreement shall be effective unless given in writing and signed by the
     party or parties sought to be charged or bound by the alteration or
     amendment.

     APPLICABLE LAW.  THIS AGREEMENT HAS BEEN DELIVERED TO LENDER AND ACCEPTED
     BY LENDER IN THE STATE OF CALIFORNIA.  IF THERE IS A LAWSUIT, BORROWER
     AGREES UPON LENDER'S REQUEST TO SUBMIT TO THE JURISDICTION OF THE COURTS OF
     SANTA CLARA COUNTY, THE STATE OF CALIFORNIA.  (INITIAL HERE ______________)
     Lender and Borrower hereby waive the right to any jury trial in any
     action, proceeding, or counterclaim brought by either Lender or Borrower
     against the other.  This Agreement shall be governed by and construed in
     accordance with the laws of the State of California.

     CAPTION HEADINGS.  Caption headings in this Agreement are for convenience
     purposes only and are not to be used to interpret or define the provisions
     of this Agreement.

     MULTIPLE PARTIES; CORPORATE AUTHORITY.  All obligations of Borrower under
     this Agreement shall be joint and several, and all references to Borrower
     shall mean each and every Borrower.  This means that each of the persons
     signing below is responsible for ALL obligations in this Agreement.

     CONSENT TO LOAN PARTICIPATION.  Borrower agrees and consents to Lender's
     sale or transfer, whether now or later, of one or more participation
     interests in the Loans to one or more purchasers, whether related or
     unrelated to Lender.  Lender may provide, without any limitation
     whatsoever, to any one or more purchasers, or potential purchasers, any
     information or knowledge Lender may have about Borrower or about any other
     matter relating to the Loan, and Borrower hereby consents to such
     disclosure.  Borrower additionally waives any and all notices of sale of
     participation interests, as well as all notices of any repurchase of such
     participation interests.  Borrower also agrees that the purchasers of any
     such participation interests will be considered as the absolute owners of
     such interests in the Loans and will have all the rights granted under the
     participation agreement or agreements governing the sale of such
     participation interests.  Borrower further waives all rights of offset or
     counterclaim that it may have now or later against Lender or against any
     purchaser of such a participation interest and unconditionally agrees that
     either Lender or such purchaser may enforce Borrower's obligation under the
     Loans irrespective of the failure or insolvency of any holder of any
     interest in the Loans.  Borrower further agrees that the purchaser of any
     such participation interests may enforce its interests irrespective of any
     personal claims or defenses that Borrower may have against Lender.

     COSTS AND EXPENSES.  Borrower agrees to pay upon demand all of Lender's
     out-of-pocket expenses, including without limitation attorneys' fees,
     incurred in connection with the preparation, execution, enforcement and
     collection of this Agreement or in connection with the Loans made pursuant
     to this Agreement.  Lender may pay someone else to help collect the Loans
     and to enforce this Agreement, and Borrower will pay that amount.  This
     includes, subject to any limits under applicable law, Lender's attorneys'
     fees and Lender's legal expenses, whether or not there is a lawsuit,
     including attorneys' fees for bankruptcy proceedings (including efforts to
     modify or vacate any automatic stay or injunction), appeals, and any
     anticipated post-judgment collection services.  Borrower also will pay any
     court costs, in addition to all other sums provided by law.


                                       13



                             BUSINESS LOAN AGREEMENT
                                    CONTINUED

     NOTICES.  All notices required to be given under this Agreement shall be
     given in writing and shall be effective when actually delivered or when
     deposited with a nationally recognized overnight courier or deposited in
     the United States mail, first class, postage prepaid, addressed to the
     party to whom the notice is to be given at the address shown above.  Any
     party may change its address for notices under this Agreement by giving
     formal written notice to the other parties, specifying that the purpose of
     the notice is to change the party's address.  To the extent permitted by
     applicable law, if there is more than one Borrower, notice to any Borrower
     will constitute notice to all Borrowers.  For notice purposes, Borrower
     agrees to keep Lender informed at all times of Borrower's current
     address(es).

     SEVERABILITY.  If a court of competent jurisdiction finds any provision of
     this Agreement to be invalid or unenforceable as to any person or
     circumstance, such finding shall not render that provision invalid or
     unenforceable as to any other persons or circumstances.  If feasible, any
     such offending provision shall be deemed to be modified to be within the
     limits of enforceability or validity; however, if the offending provision
     cannot be so modified, it shall be stricken and all other provisions of
     this Agreement in all other respects shall remain valid and enforceable.

     SUBSIDIARIES AND AFFILIATES OF BORROWER.  To the extent the context of any
     provisions of this Agreement makes it appropriate, including without
     limitation any representation, warranty or covenant, the word "Borrower" as
     used herein shall include all subsidiaries and affiliates of Borrower.
     Notwithstanding the foregoing however, under no circumstances shall this
     Agreement be construed to require Lender to make any Loan or other
     financial accommodation to any subsidiary or affiliate of Borrower.

     SUCCESSORS AND ASSIGNS.  All covenants and agreements contained by or on
     behalf of Borrower shall bind its successors and assigns and shall inure to
     the benefit of Lender, its successors and assigns.  Borrower shall not,
     however, have the right to assign its rights under this Agreement or any
     interest therein, without the prior written consent of Lender.

     SURVIVAL.  All warranties, representations, and covenants made by Borrower
     in this Agreement or in any certificate or other instrument delivered by
     Borrower to Lender under this Agreement shall be considered to have been
     relied upon by Lender and will survive the making of the Loan and delivery
     to Lender of the Related Documents, regardless of any investigation made by
     Lender or on Lender's behalf.

     TIME IS OF THE ESSENCE.  Time is of the essence in the performance of this
     Agreement.

     WAIVER.  Lender shall not be deemed to have waived any rights under this
     Agreement unless such waiver is given in writing and signed by Lender.  No
     delay or omission on the part of Lender in exercising any right shall
     operate as a waiver of such right or any other right.  A waiver by Lender
     of a provision of this Agreement shall not prejudice or constitute a waiver
     of Lender's right otherwise to demand strict compliance with that provision
     or any other provision of this Agreement.  No prior waiver by Lender, nor
     any course of dealing between Lender and Borrower, or between Lender and
     any Grantor, shall constitute a waiver of any of Lender's rights or of any
     obligations of Borrower or of any Grantor as to any future transactions.
     Whenever the consent of Lender is required under this Agreement, the
     granting of such consent by Lender in any instance shall not constitute
     continuing consent in subsequent instances where such consent is required,
     and in all cases such consent may be granted or withheld in the sole
     discretion of Lender.


                                       14



                             BUSINESS LOAN AGREEMENT
                                    CONTINUED

CONDITION.  The effectiveness of this Business Loan Agreement is subject to (i)
a Subordination  Agreement (ii) an Amendment to Contingent Blocked Account, and
(iii) an Amendment to Lockbox Agreement between Borrower, Lender and IBM Credit
Corporation.

BORROWER ACKNOWLEDGES HAVING READ ALL THE PROVISIONS OF THIS BUSINESS LOAN
AGREEMENT, AND BORROWER AGREES TO ITS TERMS.  THIS AGREEMENT IS DATED AS OF
MARCH 20, 1995.

BORROWER:

RADIUS INC.


BY:    /s/ Robert W. Saltmarsh          /s/ David Pine
   ----------------------------------------------------------------
NAME:  ROBERT W. SALTMARSH              DAVID PINE
      -------------------------------------------------------------
TITLE: VP FINANCE & CFO                 GENERAL COUNSEL & SECRETARY
      -------------------------------------------------------------


LENDER:

SILICON VALLEY BANK


BY:______________________________________________
NAME: ___________________________________________
TITLE: _____________________________________________

BY:_______________________________________________
NAME:____________________________________________
TITLE:_____________________________________________


                                       15






                                                   BORROWING BASE CERTIFICATE
                                                      COLLATERAL SCHEDULE

- -----------------------------------------------------------------------------------------------------------------------------
BORROWER:    RADIUS INC.                                                                       LENDER: Silicon Valley Bank
                                                                                                       45 William Street
                                                                                                       Wellesley, MA 02181

Commitment Amount:    $5,000,000.00
- -----------------------------------------------------------------------------------------------------------------------------
   FOREIGN ACCOUNTS RECEIVABLE

        1.  Foreign Accounts Receivable Book Value of                           $
                                                       ----------------          ----------
        2.  Additions (please explain on reverse)                               $
                                                                                 ----------
        3.  TOTAL FOREIGN ACCOUNTS RECEIVABLE                                   $
                                                                                 ----------

   FOREIGN ACCOUNTS RECEIVABLE DEDUCTIONS

        4.  Amounts over 90 days                            $
                                                             ----------
        5.  Balance of 50% over 90 day accounts             $
                                                             ----------
        6.  Excess 25% concentration                        $
                                                             ----------
        7.  Credit Balances over 90 days                    $
                                                             ----------
        8.  Canadian Accounts                               $
                                                             ----------
        9.  Governmental Accounts                           $
                                                             ----------
       10.  Contra Accounts                                 $
                                                             ----------
       11.  Promotion of Demo Accounts                      $
                                                             ----------
       12.  Intercompany/Employee Accounts                  $
                                                             ----------
       13.  Other (please explain on reverse)               $
                                                             ----------
       14.  TOTAL ACCOUNTS RECEIVABLE DEDUCTIONS                                $
                                                                                 ----------
       15.  Eligible Accounts (#3 - #14)                                        $
                                                                                 ----------
       16.  Loan Value of Accounts (40% Advance)            $
                                                             ----------
       17.  TOTAL AVAILABLE BASE                                                $
                                                                                 ----------
   BALANCES

       18.  Maximum Loan Amount                                                 $5,000,000.00

       19.  Total Funds Available (Lesser of #18 or #17)    $
                                                             ----------
       20.  Present balance owing on Line of Credit         $
                                                             ----------
       21.  Outstanding under F/X and L/C Line              $
                                                             ----------
       22.  RESERVE POSITION (#19 - (#20 + #21))                                $
                                                                                 ----------

The undersigned represents and warrants that the foregoing is true, complete and correct, and that the information reflected
in this Collateral Schedule complies with the representations and warranties set forth in the Security Agreement and in the
Business Loan Agreement, as amended from time to time, between the undersigned and Silicon Valley Bank dated March
28, 1995


SINCERELY,

RADIUS INC.

By:
   ----------------------------
Name:
     --------------------------
Title:
      -------------------------                      --------------------------------------------------------------
                                                     --------------------------------------------------------------
                                                                             BANK USE ONLY
                                                       RECEIVED BY:
                                                                   ------------------------
                                                       DATE:
                                                            -------------------
                                                       VERIFIED BY:
                                                                   ------------------------
                                                     --------------------------------------------------------------
                                                     --------------------------------------------------------------




                             COMPLIANCE CERTIFICATE

TO:             SILICON VALLEY BANK
                2202 North First Street
                San Jose, CA  95131

FROM:           RADIUS, INC.
                Commitment amount $5,000,000.00

The undersigned authorized officer of RADIUS, INC. ("BORROWER"), hereby
certifies that in accordance with the terms and conditions of the Business Loan
Agreement between Borrower and Bank (the "Agreement"), (i) Borrower is in
complete compliance for the period ending ____________________ of all required
conditions and terms except as noted below and (ii) all representations and
warranties of Borrower stated in the Agreement are true, accurate and complete
in all material respects as of the date hereof.  Attached herewith are the
required documents supporting the above certification.  The Officer further
certifies that these are prepared in accordance with Generally Accepted
Accounting Principles (GAAP) and are consistent from one period to the next
except as explained in an accompanying letter or footnotes.

  PLEASE INDICATE COMPLIANCE STATUS BY CIRCLING YES/NO UNDER "COMPLIES" COLUMN.

REPORTING COVENANT                    REQUIRED                       COMPLIES

Interim Financial Statements + CC     Monthly w/in 30 days           YES/NO
Annual (CPA audited)                  FYE w/in 90 days               YES/NO
A/R & A/P Agings                      Monthly w/in 15 days           YES/NO
A/R Audit                             Annual                         YES/NO



FINANCIAL COVENANT         REQUIRED              ACTUAL              COMPLIES

MAINTAIN ON A QUARTERLY BASIS, UNLESS OTHERWISE NOTED:

                                                            
Min. Tang. Net Worth       $35,000,000.00        $______________     YES/NO
Minimum Quick Ratio        0.75:1.00             _____:1.00          YES/NO
Max. Debt/TNW              3.00:1.00             _____:1.00          YES/NO



COMMENTS REGARDING EXCEPTIONS:          ---------------------------------------
                                        ---------------------------------------
                                                      BANK USE ONLY
                                         RECEIVED BY:
                                                     --------------
                                         DATE:
                                              --------------
                                         VERIFIED BY:
                                                     --------------
                                         COMPLIANCE STATUS:  YES/NO
                                        ---------------------------------------
                                        ---------------------------------------
Sincerely,

Radius, Inc.

By:
   -------------------------------
Name:
     -----------------------------
Title:
      ----------------------------



                          COMMERCIAL SECURITY AGREEMENT


      BORROWER:   RADIUS INC.                LENDER:  SILICON VALLEY BANK
                  215 MOFFETT PARK DRIVE              SANTA CLARA TECHNOLOGY
                  SUNNYVALE, CA  94089                3000 LAKESIDE DRIVE
                                                      SANTA CLARA, CA 95054


===============================================================================


THIS COMMERCIAL SECURITY AGREEMENT IS ENTERED INTO BETWEEN RADIUS INC. (REFERRED
TO BELOW AS "GRANTOR"); AND SILICON VALLEY BANK (REFERRED TO BELOW AS "LENDER").
FOR VALUABLE CONSIDERATION, GRANTOR GRANTS TO LENDER A SECURITY INTEREST IN THE
COLLATERAL TO SECURE THE INDEBTEDNESS AND AGREES THAT LENDER SHALL HAVE THE
RIGHTS STATED IN THIS AGREEMENT WITH RESPECT TO THE COLLATERAL, IN ADDITION TO
ALL OTHER RIGHTS WHICH LENDER MAY HAVE BY LAW.
DEFINITIONS.  The following words shall have the following meanings when used in
this Agreement.  Terms not otherwise defined in this Agreement shall have the
meanings attributed to such terms in the Uniform Commercial Code.  All
references to dollar amounts shall mean amounts in lawful money of the United
States of America.

     AGREEMENT.  The word "Agreement" means this Commercial Security Agreement,
     as this Commercial Security Agreement may be amended or modified from time
     to time, together with all exhibits and schedules attached to this
     Commercial Security Agreement from time to time.
     COLLATERAL.  The word "Collateral" means the following described property
     of Grantor, whether now owned or hereafter acquired, whether now existing
     or hereafter arising, and wherever located:

          A) ALL INVENTORY AND EQUIPMENT, AND ALL PARTS THEREOF, ATTACHMENTS,
          ACCESSORIES AND ACCESSIONS THERETO, PRODUCTS THEREOF AND DOCUMENTS
          THEREFOR;

          B) ALL ACCOUNTS, CONTRACT RIGHTS, CHATTEL PAPER, INSTRUMENTS, DEPOSIT
          ACCOUNTS, OBLIGATIONS OF ANY KIND OWING TO GRANTOR, WHETHER OR NOT
          ARISING OUT OF OR IN CONNECTION WITH THE SALE OR LEASE OF GOODS OR THE
          RENDERING OF SERVICES AND ALL BOOKS,  INVOICES, DOCUMENTS AND OTHER
          RECORDS IN ANY FORM EVIDENCING OR RELATING TO ANY OF THE FOREGOING;

          C) GENERAL INTANGIBLES, EXCLUDING PATENTS, TRADEMARKS, TRADE NAMES AND
          COPYRIGHTS, BUT INCLUDING THE RIGHT OF GRANTOR TO RECEIVE PAYMENT IN
          RESPECT OF PATENTS, TRADEMARKS, TRADE NAMES AND COPYRIGHTS;

          D) ALL RIGHTS NOW OR HEREAFTER EXISTING IN AND TO ALL MORTGAGES,
          SECURITY AGREEMENTS, LEASES OR OTHER CONTRACTS SECURING OR OTHERWISE
          RELATING TO ANY OF THE FOREGOING; AND

          E) ALL SUBSTITUTIONS AND REPLACEMENTS FOR ALL OF THE FOREGOING, ALL
          PROCEEDS OF ALL OF THE FOREGOING AND, TO THE EXTENT NOT OTHERWISE
          INCLUDED, ALL PAYMENTS UNDER INSURANCE  OR ANY INDEMNITY, WARRANTY OR
          GUARANTY, PAYABLE BY PAYMENTS UNDER INSURANCE OR ANY

In addition, the word "Collateral" includes all the following, whether now owned
or hereafter acquired, whether now existing or hereafter arising, and wherever
located:

          (a)  All attachments, accessions, accessories, tools, parts, supplies,
          increases, and additions to and all replacements of and substitutions
          for any property described above.
          (b)  All products and produce of any of the property described in this
          Collateral section.
          (c)  All accounts, contract rights, general intangibles, instruments,
          rents, monies, payments, and all other rights, arising out of a sale,
          lease, or other disposition of any of the property described in this
          Collateral section.
          (d)  All proceeds (including insurance proceeds) from the sale,
          destruction, loss, or other disposition of any of the property
          described in this Collateral section.
          (e)  All records and data relating to any of the property described in
          this Collateral section, whether in the form of a writing, photograph,
          microfilm, microfiche, or electronic media, together with all of
          Grantor's right, title, and interest in and to all computer software
          required to utilize, create, maintain, and process any such records or
          data on electronic media.

     EVENT OF DEFAULT.  The words "Event of Default" mean and include without
     limitation any of the Events of Default set forth below in the section
     titled "Events of Default."
     GRANTOR.  The word "Grantor" means RADIUS INC., its successors and assigns
     GUARANTOR.  The word "Guarantor" means and includes without limitation each
     and all of the guarantors, sureties, and accommodation parties in
     connection with the Indebtedness.
     INDEBTEDNESS.  The word "Indebtedness" means the indebtedness evidenced by
     the Note, including all principal and interest, together with all other
     indebtedness and costs and expenses for which Grantor is responsible under
     this Agreement or under any of the Related Documents.
     LENDER.  The word "Lender" means Silicon Valley Bank, its successors and
     assigns.
     NOTE.  The word "Note" means the notes, credit agreements or letters of
     credit in any principal amount from Borrower to Lender, together with all
     renewals of, extensions of, modifications of, refinancings of,
     consolidations of and substitutions for the notes, credit agreements, or
     letters of credit.
     RELATED DOCUMENTS.  The words "Related Documents" mean and include without
     limitation all promissory notes, credit agreements, loan agreements,
     environmental agreements, guaranties, security agreements, mortgages, deeds
     of trust, and all other instruments, agreements and documents, whether now
     or hereafter existing, executed in connection with the Indebtedness.



03-20-1995    COMMERCIAL SECURITY AGREEMENT     PAGE 2
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OBLIGATIONS OF GRANTOR.  Grantor warrants and covenants to Lender as follows:

     PERFECTION OF SECURITY INTEREST.  Grantor agrees to execute such financing
     statements and to take whatever other actions are requested by Lender to
     perfect and continue Lender's security interest in the Collateral.  Upon
     request of Lender, Grantor will deliver to Lender any and all of the
     documents evidencing or constituting the Collateral, and Grantor will note
     Lender's interest upon any and all chattel paper if not delivered to Lender
     for possession by Lender.  Grantor hereby appoints Lender as its
     irrevocable attorney-in-fact for the purpose of executing any documents
     necessary to perfect or to continue the security interest granted in this
     Agreement.  Lender may at any time, and without further authorization from
     Grantor, file a carbon, photographic or other reproduction of any financing
     statement or of this Agreement for use as a financing statement.  Grantor
     will reimburse Lender for all expenses for the perfection and the
     continuation of the perfection of Lender's security interest in the
     Collateral.  Grantor promptly will notify Lender before any change in
     Grantor's name including any change to the assumed business names of
     Grantor.  THIS IS A CONTINUING SECURITY AGREEMENT AND WILL CONTINUE IN
     EFFECT EVEN THOUGH ALL OR ANY PART OF THE INDEBTEDNESS IS PAID IN FULL AND
     EVEN THOUGH FOR A PERIOD OF TIME GRANTOR MAY NOT BE INDEBTED TO LENDER.
     NO VIOLATION.  The execution and delivery of this Agreement will not
     violate any law or agreement governing Grantor or to which Grantor is a
     party, and its certificate or articles of incorporation and bylaws do not
     prohibit any term or condition of this Agreement.
     ENFORCEABILITY OF COLLATERAL.  To the extent the Collateral consists of
     accounts, contract rights, chattel paper, or general intangibles, the
     Collateral is enforceable in accordance with its terms, is genuine, and
     complies with applicable laws concerning form, content and manner of
     preparation and execution, and all persons appearing to be obligated on the
     Collateral have authority and capacity to contract and are in fact
     obligated as they appear to be on the Collateral.
     LOCATION OF THE COLLATERAL.  Grantor, upon request of Lender, will deliver
     to Lender in form satisfactory to Lender a schedule of real properties and
     Collateral locations relating to Grantor's operations, including without
     limitation the following:  (a) all real property owned or being purchased
     by Grantor;  (b) all real property being rented or leased by Grantor;  (c)
     all storage facilities owned, rented, leased, or being used by Grantor; and
     (d) all other properties where Collateral is or may be located.  Except in
     the ordinary course of its business, Grantor shall not remove the
     Collateral from its existing locations without the prior written consent of
     Lender.
     REMOVAL OF COLLATERAL.  Grantor shall keep the Collateral (or to the extent
     the Collateral consists of intangible property such as accounts, the
     records concerning the Collateral) at Grantor's address shown above, or at
     such other locations as are acceptable to Lender.  Except in the ordinary
     course of its business, including the storage, shipping sales of inventory,
     Grantor shall not remove the Collateral from its existing locations without
     the prior written consent of Lender; provided, however, that Grantor shall
     not store any Collateral outside the State of California without obtaining
     Lender's prior written consent.  To the extent that the Collateral consists
     of vehicles, or other titled property, Grantor shall not take or permit any
     action which would require application for certificates of title for the
     vehicles outside the State of California, without the prior written consent
     of Lender.
     TRANSACTIONS INVOLVING COLLATERAL.  Except for inventory sold or accounts
     collected in the ordinary course of Grantor's business, Grantor shall not
     sell, offer to sell, or otherwise transfer or dispose of the Collateral.
     While Grantor is not in default under this Agreement, Grantor may sell
     inventory, but only in the ordinary course of its business and only to
     buyers who qualify as a buyer in the ordinary course of business.  A sale
     in the ordinary course of Grantor's business does not include a transfer in
     partial or total satisfaction of a debt or any bulk sale.  Grantor shall
     not pledge, mortgage, encumber or otherwise permit the Collateral to be
     subject to any lien, security interest, encumbrance, or charge, other than
     the security interest provided for in this Agreement, without the prior
     written consent of Lender.  This includes security interests even if junior
     in right to the security interests granted under this Agreement.  Unless
     waived by Lender, all proceeds from any disposition of the Collateral (for
     whatever reason) shall be held in trust for Lender and shall not be
     commingled with any other funds; provided however, this requirement shall
     not constitute consent by Lender to any sale or other disposition.  Upon
     receipt, Grantor shall immediately deliver any such proceeds to Lender.
     TITLE.  Grantor represents and warrants to Lender that it holds good and
     marketable title to the Collateral, free and clear of all liens and
     encumbrances except for the lien of this Agreement.  No financing statement
     covering any of the Collateral is on file in any public office other than
     those which reflect the security interest created by this Agreement or to
     which Lender has specifically consented.  Grantor shall defend Lender's
     rights in the Collateral against the claims and demands of all other
     persons.
     COLLATERAL SCHEDULES AND LOCATIONS.  Insofar as the Collateral consists of
     inventory, Grantor shall deliver to Lender, as often as Lender shall
     require, such lists, descriptions, and designations of such Collateral as
     Lender may require to identify the nature, extent, and location of such
     Collateral.  Such information shall be submitted for Grantor and each of
     its subsidiaries or related companies.
     MAINTENANCE AND INSPECTION OF COLLATERAL.  Grantor shall maintain all
     tangible Collateral in good condition and repair.  Grantor will not commit
     or permit damage to or destruction of the Collateral or any part of the
     Collateral.  Lender and its designated representatives and agents shall
     have the right at all reasonable times to examine, inspect, and audit the
     Collateral wherever located.  Grantor shall notify Lender within thirty
     (30) days of all material cases involving the return, rejection,
     repossession, loss or damage of or to any Collateral; of any material
     request for credit or adjustment or of any other dispute arising with
     respect to the Collateral; and generally of all material happenings and
     events affecting the Collateral or the value or the amount of the
     Collateral.
     TAXES, ASSESSMENTS AND LIENS.  Grantor will pay when due all taxes,
     assessments and liens upon the Collateral, its use or operation, upon this
     Agreement, upon any promissory note or notes evidencing the Indebtedness,
     or upon any of the other Related Documents.  Grantor may withhold any such
     payment or may elect to contest any lien if Grantor is in good faith
     conducting an appropriate proceeding to contest the obligation to pay and
     so long as Lender's interest in the Collateral is not jeopardized in
     Lender's sole opinion.  If the Collateral is subjected to a lien which is
     not discharged within fifteen (15) days, Grantor shall deposit with Lender
     cash, a sufficient corporate surety bond or other security satisfactory to
     Lender in an amount adequate to provide for the discharge of the lien plus
     any interest, costs, attorneys' fees or other charges that could accrue as
     a result of foreclosure or sale of the Collateral.  In any contest Grantor
     shall defend itself and Lender and shall satisfy any final adverse judgment
     before enforcement against the Collateral.  Grantor shall name Lender as an
     additional obligee under any surety bond furnished in the contest
     proceedings.
     COMPLIANCE WITH GOVERNMENTAL REQUIREMENTS.  Grantor shall comply promptly
     with all laws, ordinances, rules and regulations of all governmental
     authorities, now or hereafter in effect, applicable to the ownership,
     production, disposition, or use of the Collateral.  Grantor may contest in
     good faith any such law, ordinance or regulation and withhold compliance
     during any proceeding, including appropriate appeals, so long as Lender's
     interest in the Collateral, in Lender's opinion, is not jeopardized.
     HAZARDOUS SUBSTANCES.  Grantor represents and warrants that the Collateral
     never has been, and never will be so long as this Agreement remains a lien
     on the Collateral, used for the generation, manufacture, storage,
     transportation, treatment, disposal, release or threatened release of any
     hazardous waste or substance, as those terms are defined in the
     Comprehensive Environmental Response, Compensation, and Liability Act of
     1980, as amended, 42 U.S.C. Section 9601, et seq. ("CERCLA"), the Superfund
     Amendments and Reauthorization Act of 1986, Pub. L. No. 99-499



03-20-1995    COMMERCIAL SECURITY AGREEMENT     PAGE 3
(CONTINUED)

===============================================================================


     ("SARA"), the Hazardous Materials Transportation Act, 49 U.S.C. Section
     1801, et seq., the Resource Conservation and Recovery Act, 49 U.S.C.
     Section 6901, et seq., Chapters 6.5 through 7.7 of Division 20 of the
     California Health and Safety Code, Section 25100, et seq., or other
     applicable state or Federal laws, rules, or regulations adopted pursuant to
     any of the foregoing.  The terms "hazardous waste" and "hazardous
     substance" shall also include, without limitation, petroleum and petroleum
     by-products or any fraction thereof and asbestos.  The representations and
     warranties contained herein are based on Grantor's due diligence in
     investigating the Collateral for hazardous wastes and substances. Grantor
     hereby  (a) releases and waives any future claims against Lender for
     indemnity or contribution in the event Grantor becomes liable for cleanup
     or other costs under any such laws, and  (b) agrees to indemnify and hold
     harmless Lender against any and all claims and losses resulting from a
     breach of this provision of this Agreement.  This obligation to indemnify
     shall survive the payment of the Indebtedness and the satisfaction of this
     Agreement.
     MAINTENANCE OF CASUALTY INSURANCE.  Grantor shall procure and maintain all
     risks insurance, including without limitation fire, theft and liability
     coverage together with such other insurance as Lender may require with
     respect to the Collateral, in form, amounts, coverages and basis reasonably
     acceptable to Lender and issued by a company or companies reasonably
     acceptable to Lender.  Grantor, upon request of Lender, will deliver to
     Lender from time to time the policies or certificates of insurance in form
     satisfactory to Lender, including stipulations that coverages will not be
     cancelled or diminished without at least ten (10) days' prior written
     notice to Lender and not including any disclaimer of the insurer's
     liability for failure to give such a notice.  Each insurance policy also
     shall include an endorsement providing that coverage in favor of Lender
     will not be impaired in any way by any act, omission or default of Grantor
     or any other person.  In connection with all policies covering assets in
     which Lender holds or is offered a security interest, Grantor will provide
     Lender with such loss payable or other endorsements as Lender may require.
     If Grantor at any time fails to obtain or maintain any insurance as
     required under this Agreement, Lender may (but shall not be obligated to)
     obtain such insurance as Lender deems appropriate, including if it so
     chooses "single interest insurance," which will cover only Lender's
     interest in the Collateral.
     APPLICATION OF INSURANCE PROCEEDS.  Grantor shall promptly notify Lender of
     any loss or damage to the Collateral.  Lender may make proof of loss if
     Grantor fails to do so within fifteen (15) days of the casualty.  All
     proceeds of any insurance on the Collateral, including accrued proceeds
     thereon, shall be held by Lender as part of the Collateral.  If Lender
     consents to repair or replacement of the damaged or destroyed Collateral,
     Lender shall, upon satisfactory proof of expenditure,  pay or reimburse
     Grantor from the proceeds for the reasonable cost of repair or restoration.
     If Lender does not consent to repair or replacement of the Collateral,
     Lender shall retain a sufficient amount of the proceeds to pay all of the
     Indebtedness, and shall pay the balance to Grantor.  Any proceeds which
     have not been disbursed within six (6) months after their receipt and which
     Grantor has not committed to the repair or restoration of the Collateral
     shall be used to prepay the Indebtedness.
     INSURANCE RESERVES.  Lender may require Grantor to maintain with Lender
     reserves for payment of insurance premiums, which reserves shall be created
     by monthly payments from Grantor of a sum estimated by Lender to be
     sufficient to produce, at least fifteen (15) days before the premium due
     date, amounts at least equal to the insurance premiums to be paid.  If
     fifteen (15) days before payment is due, the reserve funds are
     insufficient, Grantor shall upon demand pay any deficiency to Lender.  The
     reserve funds shall be held by Lender as a general deposit and shall
     constitute a non-interest-bearing account which Lender may satisfy by
     payment of the insurance premiums required to be paid by Grantor as they
     become due.  Lender does not hold the reserve funds in trust for Grantor,
     and Lender is not the agent of Grantor for payment of the insurance
     premiums required to be paid by Grantor.  The responsibility for the
     payment of premiums shall remain Grantor's sole responsibility.
     INSURANCE REPORTS.  Grantor, upon request of Lender, shall furnish to
     Lender reports on each existing policy of insurance showing such
     information as Lender may reasonably request including the following:  (a)
     the name of the insurer;  (b) the risks insured;  (c) the amount of the
     policy;  (d) the property insured;  (e) the then current value on the basis
     of which insurance has been obtained and the manner of determining that
     value; and  (f) the expiration date of the policy.  In addition, Grantor
     shall upon request by Lender (however not more often than annually) have an
     independent appraiser satisfactory to Lender determine, as applicable, the
     cash value or replacement cost of the Collateral.

GRANTOR'S RIGHT TO POSSESSION.  Until default, Grantor may have possession of
the tangible personal property and beneficial use of all the Collateral and may
use it in any lawful manner not inconsistent with this Agreement or the Related
Documents, provided that Grantor's right to possession and beneficial use shall
not apply to any Collateral where possession of the Collateral by Lender is
required by law to perfect Lender's security interest in such Collateral.  If
Lender at any time has possession of any Collateral, whether before or after an
Event of Default, Lender shall be deemed to have exercised reasonable care in
the custody and preservation of the Collateral if Lender takes such action for
that purpose as Grantor shall request or as Lender, in Lender's sole discretion,
shall deem appropriate under the circumstances, but failure to honor any request
by Grantor shall not of itself be deemed to be a failure to exercise reasonable
care.  Lender shall not be required to take any steps necessary to preserve any
rights in the Collateral against prior parties, nor to protect, preserve or
maintain any security interest given to secure the Indebtedness.
EXPENDITURES BY LENDER.  If not discharged or paid when due, Lender may (but
shall not be obligated to) discharge or pay any amounts required to be
discharged or paid by Grantor under this Agreement, including without limitation
all taxes, liens, security interests, encumbrances, and other claims, at any
time levied or placed on the Collateral.  Lender also may (but shall not be
obligated to) pay all costs for insuring, maintaining and preserving the
Collateral.  All such expenditures incurred or paid by Lender for such purposes
will then bear interest at the rate charged under the Note from the date
incurred or paid by Lender to the date of repayment by Grantor.  All such
expenses shall become a part of the Indebtedness and, at Lender's option, will
(a) be payable on demand,  (b) be added to the balance of the Note and be
apportioned among and be payable with any installment payments to become due
during either  (i) the term of any applicable insurance policy or  (ii) the
remaining term of the Note, or  (c) be treated as a balloon payment which will
be due and payable at the Note's maturity.  This Agreement also will secure
payment of these amounts.  Such right shall be in addition to all other rights
and remedies to which Lender may be entitled upon the occurrence of an Event of
Default.
EVENTS OF DEFAULT.  Each of the following shall constitute an Event of Default
under this Agreement:

     DEFAULT ON INDEBTEDNESS.  Failure of Grantor to make any payment when due
     on the Indebtedness.
     OTHER DEFAULTS.  Failure of Grantor to comply with or to perform any other
     term, obligation, covenant or condition contained in this Agreement or in
     any of the Related Documents or in any other agreement between Lender and
     Grantor.
     INSOLVENCY.  The dissolution or termination of Grantor's existence as a
     going business, the insolvency of Grantor, the appointment of a receiver
     for any part of Grantor's property, any assignment for the benefit of
     creditors, any type of creditor workout, or the commencement of any
     proceeding under any bankruptcy or insolvency laws by or against Grantor.
     CREDITOR OR FORFEITURE PROCEEDINGS.  Commencement of foreclosure or
     forfeiture proceedings, whether by judicial proceeding, self-help,
     repossession or any other method, by any creditor of Grantor or by any
     governmental agency against the Collateral or any other collateral securing
     the Indebtedness.  This includes a garnishment of any of Grantor's deposit
     accounts with Lender.
     EVENTS AFFECTING GUARANTOR.  Any of the preceding events occurs with
     respect to any Guarantor of any of the Indebtedness or such Guarantor dies
     or becomes incompetent.



03-20-1995    COMMERCIAL SECURITY AGREEMENT     PAGE 4
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RIGHTS AND REMEDIES ON DEFAULT.  If an Event of Default occurs under this
Agreement, at any time thereafter, Lender shall have all the rights of a secured
party under the California Uniform Commercial Code.  In addition and without
limitation, Lender may exercise any one or more of the following rights and
remedies:

     ACCELERATE INDEBTEDNESS.  Lender may declare the entire Indebtedness,
     including any prepayment penalty which Grantor would be required to pay,
     immediately due and payable, without notice.
     ASSEMBLE COLLATERAL.  Lender may require Grantor to deliver to Lender all
     or any portion of the Collateral and any and all certificates of title and
     other documents relating to the Collateral.  Lender may require Grantor to
     assemble the Collateral and make it available to Lender at a place to be
     designated by Lender.  Lender also shall have full power to enter upon the
     property of Grantor to take possession of and remove the Collateral.  If
     the Collateral contains other goods not covered by this Agreement at the
     time of repossession, Grantor agrees Lender may take such other goods,
     provided that Lender makes reasonable efforts to return them to Grantor
     after repossession.
     SELL THE COLLATERAL.  Lender shall have full power to sell, lease,
     transfer, or otherwise deal with the Collateral or proceeds thereof in its
     own name or that of Grantor.  Lender may sell the Collateral at public
     auction or private sale.  Unless the Collateral threatens to decline
     speedily in value or is of a type customarily sold on a recognized market,
     Lender will give Grantor reasonable notice of the time after which any
     private sale or any other intended disposition of the Collateral is to be
     made.  The requirements of reasonable notice shall be met if such notice is
     given at least ten (10) days, or such lesser time as required by state law,
     before the time of the sale or disposition.  All expenses relating to the
     disposition of the Collateral, including without limitation the expenses of
     retaking, holding, insuring, preparing for sale and selling the Collateral,
     shall become a part of the Indebtedness secured by this Agreement and shall
     be payable on demand, with interest at the Note rate from date of
     expenditure until repaid.
     APPOINT RECEIVER.  To the extent permitted by applicable law, Lender shall
     have the following rights and remedies regarding the appointment of a
     receiver:  (a) Lender may have a receiver appointed as a matter of right,
     (b) the receiver may be an employee of Lender and may serve without bond,
     and  (c) all fees of the receiver and his or her attorney shall become part
     of the Indebtedness secured by this Agreement and shall be payable on
     demand, with interest at the Note rate from date of expenditure until
     repaid.
     COLLECT REVENUES, APPLY ACCOUNTS.  Lender, either itself or through a
     receiver, may collect the payments, rents, income, and revenues from the
     Collateral.  Lender may at any time in its discretion transfer any
     Collateral into its own name or that of its nominee and receive the
     payments, rents, income, and revenues therefrom and hold the same as
     security for the Indebtedness or apply it to payment of the Indebtedness in
     such order of preference as Lender may determine.  Insofar as the
     Collateral consists of accounts, general intangibles, insurance policies,
     instruments, chattel paper, choses in action, or similar property, Lender
     may demand, collect, receipt for, settle, compromise, adjust, sue for,
     foreclose, or realize on the Collateral as Lender may determine, whether or
     not Indebtedness or Collateral is then due.  For these purposes, Lender
     may, on behalf of and in the name of Grantor, receive, open and dispose of
     mail addressed to Grantor; change any address to which mail and payments
     are to be sent; and endorse notes, checks, drafts, money orders, documents
     of title, instruments and items pertaining to payment, shipment, or storage
     of any Collateral.  To facilitate collection, Lender may notify account
     debtors and obligors on any Collateral to make payments directly to Lender.
     OBTAIN DEFICIENCY.  If Lender chooses to sell any or all of the Collateral,
     Lender may obtain a judgment against Grantor for any deficiency remaining
     on the Indebtedness due to Lender after application of all amounts received
     from the exercise of the rights provided in this Agreement. Grantor shall
     be liable for a deficiency even if the transaction described in this
     subsection is a sale of accounts or chattel paper.
     OTHER RIGHTS AND REMEDIES.  Lender shall have all the rights and remedies
     of a secured creditor under the provisions of the Uniform Commercial Code,
     as may be amended from time to time.  In addition, Lender shall have and
     may exercise any or all other rights and remedies it may have available at
     law, in equity, or otherwise.
     CUMULATIVE REMEDIES.  All of Lender's rights and remedies, whether
     evidenced by this Agreement or the Related Documents or by any other
     writing, shall be cumulative and may be exercised singularly or
     concurrently.  Election by Lender to pursue any remedy shall not exclude
     pursuit of any other remedy, and an election to make expenditures or to
     take action to perform an obligation of Grantor under this Agreement, after
     Grantor's failure to perform, shall not affect Lender's right to declare a
     default and to exercise its remedies.

MISCELLANEOUS PROVISIONS.  The following miscellaneous provisions are a part of
this Agreement:

     AMENDMENTS.  This Agreement, together with any Related Documents,
     constitutes the entire understanding and agreement of the parties as to the
     matters set forth in this Agreement.  No alteration of or amendment to this
     Agreement shall be effective unless given in writing and signed by the
     party or parties sought to be charged or bound by the alteration or
     amendment.
     APPLICABLE LAW.  This Agreement has been delivered to Lender and accepted
     by Lender in the State of California.  If there is a lawsuit, Grantor
     agrees upon Lender's request to submit to the jurisdiction of the courts of
     Santa Clara County, State of California.  (INITIAL HERE ______________ )
     Lender and Grantor hereby waive the right to any jury trial in any action,
     proceeding, or counterclaim brought by either Lender or Grantor against the
     other.  This Agreement shall be governed by and construed in accordance
     with the laws of the State of California.
     ATTORNEYS' FEES; EXPENSES.  Grantor agrees to pay upon demand all of
     Lender's costs and expenses, including attorneys' fees and Lender's legal
     expenses, incurred in connection with the enforcement of this Agreement.
     Lender may pay someone else to help enforce this Agreement, and Grantor
     shall pay the costs and expenses of such enforcement.  Costs and expenses
     include Lender's attorneys' fees and legal expenses whether or not there is
     a lawsuit, including attorneys' fees and legal expenses for bankruptcy
     proceedings (and including efforts to modify or vacate any automatic stay
     or injunction), appeals, and any anticipated post-judgment collection
     services.  Grantor also shall pay all court costs and such additional fees
     as may be directed by the court.
     CAPTION HEADINGS.  Caption headings in this Agreement are for convenience
     purposes only and are not to be used to interpret or define the provisions
     of this Agreement.
     MULTIPLE PARTIES; CORPORATE AUTHORITY.  All obligations of Grantor under
     this Agreement shall be joint and several, and all references to Grantor
     shall mean each and every Grantor.  This means that each of the persons
     signing below is responsible for ALL obligations in this Agreement.
     NOTICES.  All notices required to be given under this Agreement shall be
     given in writing and shall be effective when actually delivered or when
     deposited with a nationally recognized overnight courier or deposited in
     the United States mail, first class, postage prepaid, addressed to the
     party to whom the notice is to be given at the address shown above.  Any
     party may change its address for notices under this Agreement by giving
     formal written notice to the other parties, specifying that the purpose of
     the notice is to change the party's address.  To the extent permitted by
     applicable law, if there is more than one Grantor, notice to any Grantor
     will constitute notice to all Grantors.  For notice purposes, Grantor
     agrees to keep Lender informed at all times of Grantor's current
     address(es).



03-20-1995    COMMERCIAL SECURITY AGREEMENT     PAGE 5
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     POWER OF ATTORNEY.  Grantor hereby appoints Lender as its true and lawful
     attorney-in-fact, irrevocably, with full power of substitution to do the
     following:  (a) to demand, collect, receive, receipt for, sue and recover
     all sums of money or other property which may now or hereafter become due,
     owing or payable from the Collateral;  (b) to execute, sign and endorse any
     and all claims, instruments, receipts, checks, drafts or warrants issued in
     payment for the Collateral;  (c) to settle or compromise any and all claims
     arising under the Collateral, and, in the place and stead of Grantor, to
     execute and deliver its release and settlement for the claim; and  (d) to
     file any claim or claims or to take any action or institute or take part in
     any proceedings, either in its own name or in the name of Grantor, or
     otherwise, which in the discretion of Lender may seem to be necessary or
     advisable.  This power is given as security for the Indebtedness, and the
     authority hereby conferred is and shall be irrevocable and shall remain in
     full force and effect until renounced by Lender.
     PREFERENCE PAYMENTS.  Any monies Lender pays because of an asserted
     preference claim in Borrower's bankruptcy will become a part of the
     Indebtedness and, at Lender's option, shall be payable by Borrower as
     provided above in the "EXPENDITURES BY LENDER" paragraph.
     SEVERABILITY.  If a court of competent jurisdiction finds any provision of
     this Agreement to be invalid or unenforceable as to any person or
     circumstance, such finding shall not render that provision invalid or
     unenforceable as to any other persons or circumstances.  If feasible, any
     such offending provision shall be deemed to be modified to be within the
     limits of enforceability or validity; however, if the offending provision
     cannot be so modified, it shall be stricken and all other provisions of
     this Agreement in all other respects shall remain valid and enforceable.
     SUCCESSOR INTERESTS.  Subject to the limitations set forth above on
     transfer of the Collateral, this Agreement shall be binding upon and inure
     to the benefit of the parties, their successors and assigns.
     WAIVER.  Lender shall not be deemed to have waived any rights under this
     Agreement unless such waiver is given in writing and signed by Lender.  No
     delay or omission on the part of Lender in exercising any right shall
     operate as a waiver of such right or any other right.  A waiver by Lender
     of a provision of this Agreement shall not prejudice or constitute a waiver
     of Lender's right otherwise to demand strict compliance with that provision
     or any other provision of this Agreement.  No prior waiver by Lender, nor
     any course of dealing between Lender and Grantor, shall constitute a waiver
     of any of Lender's rights or of any of Grantor's obligations as to any
     future transactions.  Whenever the consent of Lender is required under this
     Agreement, the granting of such consent by Lender in any instance shall not
     constitute continuing consent to subsequent instances where such consent is
     required and in all cases such consent may be granted or withheld in the
     sole discretion of Lender.
     WAIVER OF CO-OBLIGOR'S RIGHTS.  If more than one person is obligated for
     the Indebtedness, Borrower irrevocably waives, disclaims and relinquishs
     all claims against such other person which Borrower has or would otherwise
     have by virtue of payment of the Indebtedness or any part thereof,
     specifically including but not limited to all rights of indemnity,
     contribution or exoneration.

ADDITIONAL PROVISION.  If any law is passed that requires additional action on
the part of Lender, Grantor shall fully cooperate with Lender in complying with
the law and accordingly, shall reimburse Lender for all costs and expenses which
Lender incurs to comply with the law.

GRANTOR ACKNOWLEDGES HAVING READ ALL THE PROVISIONS OF THIS COMMERCIAL SECURITY
AGREEMENT, AND GRANTOR AGREES TO ITS TERMS.  THIS AGREEMENT IS DATED MARCH 20,
1995.


GRANTOR:

RADIUS INC.


BY:     /s/ Robert W. Saltmarsh
   ---------------------------------------------
 NAME:  Robert W. Saltmarsh
      ------------------------------------------
 TITLE: VP Finance & CFO
      ------------------------------------------

BY:     /s/ David Pine
   ---------------------------------------------
NAME:   David Pine
     -------------------------------------------
TITLE:  General Counsel & Secretary
     -------------------------------------------

===============================================================================



                         CORPORATE RESOLUTION TO BORROW


BORROWER:     RADIUS INC.                    LENDER:     SILICON VALLEY BANK
              215 MOFFET PARK DRIVE                      3000 LAKESIDE DRIVE
              SUNNYVALE, CA 94089                        SANTA CLARA, CA 95054

- -------------------------------------------------------------------------------

I, the undersigned Secretary or Assistant Secretary of Radius Inc. (the
"Corporation"), hereby certify that the Corporation is organized and existing by
virtue of the laws of the State of California as a corporation for profit, with
its principal office at 215 Moffett Park Drive, Sunnyvale, CA 94089.

I FURTHER CERTIFY that at a meeting of the Directors of the Corporation (or by
duly authorized corporate action in lieu of a meeting), duly called and to be
held on April 25, 1995, at which a quorum will be present and voting, the
following resolutions will be adopted and ratified as of March 31, 1995:

BE IT RESOLVED, that any one (1) of the following named officers, employees, or
agents of this Corporation, whose actual signatures are shown below:

        NAMES                   POSITIONS               ACTUAL SIGNATURES

        Robert Saltmarsh        CFO                     X /s/ Robert Saltmarsh
        ------------------      -----------------        ----------------------
                                                        X
        ------------------      -----------------        ----------------------
        Cherrie Jurado          Controller              X /s/ Cherrie Jurado
        ------------------      -----------------        ----------------------
        Kathy Lanterman         Assistant Treasurer     X /s/ Kathy Lanterman
        ------------------      -----------------        ----------------------

acting for and on behalf of this Corporation and as its act and deed be, and
they hereby are, authorized and empowered:

        BORROW MONEY.  To borrow from time to time from SILICON VALLEY BANK
        ("Lender"), on such terms as may be agreed upon between the officers,
        employees, or agents and Lender, such sum or sums of money as in their
        judgement should be borrowed, without limitation.

        EXECUTE NOTES.  To execute and deliver to Lender the promissory note or
        notes of the Corporation, on Lender's forms, at such rates of interest
        and on such terms as may be agreed upon, evidencing the sums of money so
        borrowed or any indebtedness of the Corporation to Lender, and also to
        execute and deliver to Lender one or more renewals, extensions,
        modifications, refinancings, consolidations, or substitutions for one or
        more of the notes, or any portion of the notes.

        GRANT SECURITY.  To mortgage, pledge, hypothecate, or otherwise encumber
        and deliver to Lender, as security for the payment of any loans so
        obtained, any promissory notes so executed, or any other or further
        indebtedness of the Corporation to Lender at any time owing, however the
        same may be evidenced, any property now or hereafter belonging to the
        Corporation or in which the Corporation now or hereafter may have an
        interest, including without limitation, all real property and all
        personal property of the Corporation.  Such property may be mortgaged,
        pledged, hypothecated, or encumbered at the time such loans are obtained
        or such indebtedness is incurred, or at any other time or times, and may
        be either in addition to or in lieu or any property theretofore
        mortgaged, pledged, hypothecated, or encumbered.

H:\WPFILES\CORPRESO

                                        1



                         CORPORATE RESOLUTION TO BORROW
                                    CONTINUED

        EXECUTE SECURITY DOCUMENTS.  To execute and deliver to Lender the forms
        of mortgage, deed of trust, pledge agreement, hypothecation agreement,
        and other security agreements and financing statements which may be
        submitted by Lender, and which shall evidence the terms and conditions
        under and pursuant to which such liens and encumbrances, or any of them,
        are given; and also to execute and deliver to lender any other written
        instruments, any chattel paper, or any other collateral, of any kind or
        nature, which they may in their discretion deem reasonably necessary to
        proper in connection with or pertaining to the giving of the liens and
        encumbrances.  Notwithstanding the foregoing, any one of the above
        authorized officers, employees, or agents may execute, deliver, or
        record financing statements.

        NEGOTIATE ITEMS.  To draw, endorse, and discount with Lender all drafts,
        trade acceptances, promissory notes, or other evidences of indebtedness
        payable to or belonging to the Corporation or in which the Corporation
        may have an interest, and either to receive cash for the same or to
        cause such proceeds to be credited to the account of the Corporation
        with Lender, or to cause such other disposition of the proceeds derived
        therefrom as they may deem advisable.

        LETTER OF CREDIT.  To execute letter of credit applications and other
        related documents pertaining to Lender's issuance of letters of credit.

        FOREIGN EXCHANGE CONTRACTS.  To execute and deliver foreign exchange
        contracts, either spot or forward, from time to time, in such amount as,
        in the judgment of the officer or officers herein authorized.

        FURTHER ACTS.  In the case of lines of credit, to designate additional
        or alternate individuals as being authorized to request advances
        thereunder, and in all cases, to do and perform such other acts and
        things, to pay any and all fees and costs, and to execute and deliver
        such other documents and agreements, INCLUDING AGREEMENTS WAIVING THE
        RIGHT TO A TRIAL BY JURY, as they may in their discretion deem
        reasonably necessary or proper in order to carry into effect the
        provisions of these Resolutions.

BE IT FURTHER RESOLVED, that any and all acts authorized pursuant to these
resolutions and performed prior to the passage of these resolutions are hereby
ratified and approved, that these resolutions shall remain in full force and
effect and Lender may rely on these resolutions until written notice of their
revocations shall have been delivered to and received by Lender.  Any such
notice shall not affect any of the Corporation's agreements or commitments in
effect at the time notice is given.

I FURTHER CERTIFY that the officers, employees, and agents named above are duly
elected, appointed, or employed by or for the Corporation, as the case may be,
and occupy the positions set opposite their respective names; that the foregoing
resolutions now stand or record on the books of the Corporation; and that the
resolutions are in full force and effect and have not been modified or revoked
in any manner whatsoever.


H:\WPFILES\CORPRESO

                                        2



                         CORPORATE RESOLUTION TO BORROW
                                    CONTINUED

IN TESTIMONY WHEREOF, I have hereunto set my hand and affixed the seal of the
Corporation on March 20, 1995 and attest that the signatures set opposite the
names listed above are their genuine signatures.

                                        CERTIFIED TO AND ATTESTED BY:

                                        X /s/ David Pine
                                         ------------------------------------
                                           *Secretary or Assistant Secretary

                                        X  David Pine
                                         ------------------------------------

*Note:  In case the secretary or other certifying officer is designated by the
foregoing resolutions as one of the signing officers, this certificate should
also be signed by a second Officer or Director of the Corporation.


H:WPFILES\CORPRESO

                                        3





                                              STATE OF CALIFORNIA
                           UNIFORM COMMERCIAL CODE - FINANCING STATEMENT - FORM UCC-1

              This financing Statement is presented for filing and will remain effective, with certain exceptions, for
               five years from the date of filing, pursuant to Section 8403 of the California Uniform Commercial Code.
- ------------------------------------------------------------------------------------------------------------------------------------

1. DEBTOR                                                                                    1A. SOCIAL SECURITY OR FEDERAL TAX NO.
     RADIUS, INC.                                                                                        68-0101030
- ------------------------------------------------------------------------------------------------------------------------------------
1B. MAILING ADDRESS                                                      1C. CITY, STATE                            1D. ZIP CODE
     214 MOFFETT PARK DRIVE                                                  SUNNYVALE, CA                              94089
- ------------------------------------------------------------------------------------------------------------------------------------
2. ADDITIONAL DEBTOR                                                                         2A. SOCIAL SECURITY OR FEDERAL TAX NO.

- ------------------------------------------------------------------------------------------------------------------------------------
2B. MAILING ADDRESS                                                      2C. CITY, STATE                            2D. ZIP CODE

- ------------------------------------------------------------------------------------------------------------------------------------
3. DEBTOR'S TRADE NAMES OR STYLES                                                            3A. FEDERAL TAX NUMBER

- ------------------------------------------------------------------------------------------------------------------------------------
- ------------------------------------------------------------------------------------------------------------------------------------
4. SECURED PARTY                                                                             4A. FEDERAL TAX NO.
     SILICON VALLEY BANK
     SANTA CLARA TECHNOLOGY
     3000 LAKESIDE DRIVE

     SANTA CLARA, CA 95054
- ------------------------------------------------------------------------------------------------------------------------------------
5. ASSIGNEE OF SECURED PARTY                                                                 5A. FEDERAL TAX NO.



- ------------------------------------------------------------------------------------------------------------------------------------
6. This FINANCING STATEMENT covers the following type of property:
SEE EXHIBIT "A" ATTACHED HERETO AND MADE A PART HEREOF BY REFERENCE.










- ------------------------------------------------------------------------------------------------------------------------------------
7A.  /X/ PRODUCTS OR COLLATERAL ARE ALSO COVERED      7B. DEBTOR(S) SIGNATURE NOT REQUIRED IN ACCORDANCE WITH INSTRUCTION 5(a) ITEM:
                                                            / / (1)      / / (2)      / / (3)      / / (4)
- ------------------------------------------------------------------------------------------------------------------------------------
8.   / / DEBTOR IS A "TRANSMITTING UTILITY" IN ACCORDANCE WITH UCC SECTION 9105 (1) (n)
- ------------------------------------------------------------------------------------------------------------------------------------
9.                                                                  DATE: 03-20-1995        C   10. THIS SPACE FOR USE OF FILING
                                                                                            O       OFFICER (DATE, TIME, FILE NUMBER
> /s/                              /s/                                                      D       AND FILE OFFICER)
SIGNATURE(S) OR DEBTOR(S)                                                                   E
- -----------------------------------------------------------------------------------------------
                                                                                            1

- ------------------------------------------------------------------------------------------  2

                                                                                            3
>
SIGNATURE(S) OF SECURED PARTY(IES)                                                          4
- ------------------------------------------------------------------------------------------
SILICON VALLEY BANK                                                                         5

- ------------------------------------------------------------------------------------------  6
- ------------------------------------------------------------------------------------------
11. Return copy to:
                                                                                            7

                           SILICON VALLEY BANK                                              8
                           ATTN: LOAN SERVICES
                           2202 N. FIRST STREET                                             9
                           SAN JOSE, CA 96131
                                                                                            0
- ------------------------------------------------------------------------------------------
- ------------------------------------------------------------------------------------------

                                                     FORM UCC-1

- ------------------------------------------------------------------------------------------------------------------------------------
- ------------------------------------------------------------------------------------------------------------------------------------




                                  ATTACHMENT A


All of Debtor's right, title and interest in and to the following property,
whether now owned or hereafter acquired or existing and wherever located:

A) all inventory and equipment, and all parts thereof, attachments, accessories
and accession thereto, products thereof and documents therefor;

B) all accounts, contract rights, chattel paper, instruments, deposit accounts,
obligations of any kind owing to Debtor, whether or not arising out of or in
connection with the sale or lease of goods or the rendering of services and all
books, invoices, documents and other records in any form evidencing or relating
to any of the foregoing;

C) general intangibles, excluding patents, trademarks, trade names and
copyrights, but including the right of Debtor to receive payment in respect of
patents, trademarks, trade names and copyrights;

D) all rights now or hereafter existing in and to all mortgages, security
agreements, leases or other contracts securing or otherwise relating to any of
the foregoing; and

E) all substitutions and replacements for all of the foregoing, all proceeds of
all of the foregoing and, to the extent not otherwise included, all payments
under insurance or any indemnity, warranty or guaranty, payable by reason of
loss or damage to or otherwise with respect to any of the foregoing.



                                 PROMISSORY NOTE

      BORROWER:   RADIUS INC.                LENDER: SILICON VALLEY BANK
                  215 MOFFETT PARK DRIVE             SANTA CLARA TECHNOLOGY
                  SUNNYVALE, CA  94089               3000 LAKESIDE DRIVE
                                                     SANTA CLARA, CA 95054
===============================================================================

PRINCIPAL AMOUNT: $5,000,000.00 INITIAL RATE: 10.250% DATE OF NOTE: MARCH 20,
1995

PROMISE TO PAY.  RADIUS INC. ("BORROWER") PROMISES TO PAY TO SILICON VALLEY BANK
("LENDER"), OR ORDER, IN LAWFUL MONEY OF THE UNITED STATES OF AMERICA, THE
PRINCIPAL AMOUNT OF FIVE MILLION & 00/100 DOLLARS ($5,000,000.00) OR SO MUCH AS
MAY BE OUTSTANDING, TOGETHER WITH INTEREST ON THE UNPAID OUTSTANDING PRINCIPAL
BALANCE OF EACH ADVANCE.  INTEREST SHALL BE CALCULATED FROM THE DATE OF EACH
ADVANCE UNTIL REPAYMENT OF EACH ADVANCE.

PAYMENT.  BORROWER WILL PAY THIS LOAN IN ONE PAYMENT OF ALL OUTSTANDING
PRINCIPAL PLUS ALL ACCRUED UNPAID INTEREST ON MARCH 19, 1996.  IN ADDITION,
BORROWER WILL PAY REGULAR MONTHLY PAYMENTS OF ACCRUED UNPAID INTEREST BEGINNING
APRIL 19, 1995, AND ALL SUBSEQUENT INTEREST PAYMENTS ARE DUE ON THE SAME DAY OF
EACH MONTH AFTER THAT.  Interest on this Note is computed on a 365/360 simple
interest basis; that is, by applying the ratio of the annual interest rate over
a year of 360 days, multiplied by the outstanding principal balance, multiplied
by the actual number of days the principal balance is outstanding.  Borrower
will pay Lender at Lender's address shown above or at such other place as Lender
may designate in writing.  Unless otherwise agreed or required by applicable
law, payments will be applied first to accrued unpaid interest, then to
principal, and any remaining amount to any unpaid collection costs and late
charges.

VARIABLE INTEREST RATE.  The interest rate on this Note is subject to change
from time to time based on changes in an index which is   Lender will tell
Borrower the current Index rate upon Borrower's request.  Borrower understands
that Lender may make loans based on other rates as well.  THE INDEX CURRENTLY IS
9.000% PER ANNUM.

THE INTEREST RATE TO BE APPLIED TO THE UNPAID PRINCIPAL BALANCE OF THIS NOTE
WILL BE AT A RATE OF 1.250 PERCENTAGE POINTS OVER THE INDEX, RESULTING IN AN
INITIAL RATE OF 10.250% PER ANNUM.  NOTICE:  Under no circumstances will the
interest rate on this Note be more than the maximum rate allowed by applicable
law.

PREPAYMENT.  Borrower agrees that all loan fees and other prepaid finance
charges are earned fully as of the date of the loan and will not be subject to
refund upon early payment (whether voluntary or as a result of default), except
as otherwise required by law.  Except for the foregoing, Borrower may pay
without penalty all or a portion of the amount owed earlier than it is due.
Early payments will not, unless agreed to by Lender in writing, relieve Borrower
of Borrower's obligation to continue to make payments of accrued unpaid
interest.  Rather, they will reduce the principal balance due.

DEFAULT.  Borrower will be in default if any of the following happens:  (a)
Borrower fails to make any payment when due.  (b) Borrower breaks any promise
Borrower has made to Lender, or Borrower fails to perform promptly at the time
and strictly in the manner provided in this Note or any agreement related to
this Note, or in any other agreement or loan Borrower has with Lender.  (c)
Borrower defaults under any loan, extension of credit, security agreement,
purchase or sales agreement, or any other agreement, in favor of any other
creditor or person that may materially affect Borrower's property or Borrower's
ability to repay this Note or perform Borrower's obligations under this Note or
any of the Related Documents.  (d) Any representation or statement made or
furnished to Lender by Borrower or on Borrower's behalf is false or misleading
in any material respect.  (e) Borrower becomes insolvent, a receiver is
appointed for any part of Borrower's property, Borrower makes an assignment for
the benefit of creditors, or any proceeding is commenced either by Borrower or
against Borrower under any bankruptcy or insolvency laws.  (f) Any creditor
tries to take any of Borrower's property on or in which Lender has a lien or
security interest.  This includes a garnishment of any of Borrower's accounts
with Lender.  (g) Any of the events described in this default section occurs
with respect to any guarantor of this Note.

LENDER'S RIGHTS.  Upon default, Lender may declare the entire unpaid principal
balance on this Note and all accrued unpaid interest immediately due, without
notice, and then Borrower will pay that amount.  Upon Borrower's failure to pay
all amounts declared due pursuant to this section, including failure to pay upon
final maturity, Lender, at its option, may also, if permitted under applicable
law, do one or both of the following:   (a) increase the variable interest rate
on this Note to 6.250 percentage points over the Index, and  (b) add any unpaid
accrued interest to principal and such sum will bear interest therefrom until
paid at the rate provided in this Note (including any increased rate).  Lender
may hire or pay someone else to help collect this Note if Borrower does not pay.
Borrower also will pay Lender that amount.  This includes, subject to any limits
under applicable law, Lender's attorneys' fees and Lender's legal expenses
whether or not there is a lawsuit, including attorneys' fees and legal expenses
for bankruptcy proceedings (including efforts to modify or vacate any automatic
stay or injunction), appeals, and any anticipated post-judgment collection
services. Borrower also will pay any court costs, in addition to all other sums
provided by law.  THIS NOTE HAS BEEN DELIVERED TO LENDER AND ACCEPTED BY LENDER
IN THE STATE OF CALIFORNIA.  IF THERE IS A LAWSUIT, BORROWER AGREES UPON
LENDER'S REQUEST TO SUBMIT TO THE JURISDICTION OF THE COURTS OF SANTA CLARA
COUNTY, THE STATE OF CALIFORNIA.  (INITIAL HERE ______________ )
Lender and Borrower hereby waive the right to any jury trial in any action,
proceeding, or counterclaim brought by either Lender or Borrower against the
other.  This Note shall be governed by and construed in accordance with the laws
of the State of California.

LINE OF CREDIT.  This Note evidences a revolving line of credit.  Advances under
this Note, as well as directions for payment from Borrower's accounts, may be
requested orally or in writing by Borrower or by an authorized person.  Lender
may, but need not, require that all oral requests be confirmed in writing.
Borrower agrees to be liable for all sums either:  (a) advanced in accordance
with the instructions of an authorized person or  (b) credited to any of
Borrower's accounts with Lender.   The unpaid principal balance owing on this
Note at any time may be evidenced by endorsements on this Note or by Lender's
internal records, including daily computer print-outs.  Lender will have no
obligation to advance funds under this Note if: (a) Borrower or any guarantor is
in default under the terms of this Note or any agreement that Borrower or any
guarantor has with Lender, including any agreement made in connection with the
signing of this Note;  (b) Borrower or any guarantor ceases doing business or is
insolvent;  (c) any guarantor seeks, claims or otherwise attempts to limit,
modify or revoke such guarantor's guarantee of this Note or any other loan with
Lender; or  (d) Borrower has applied funds provided pursuant to this Note for
purposes other than those authorized by Lender.




03-20-1995     PROMISSORY NOTE  PAGE 2
(CONTINUED)
===============================================================================


REQUEST TO DEBIT ACCOUNTS.  Borrower will regularly deposit all funds
received from its business activities in accounts maintained by Borrower at
SILICON VALLEY BANK.  Borrower hereby requests and authorizes Lender to debit
any accounts maintained with Lender, including, without limitation, Account
Number 0271166471 for payments of interest and principal due on the loan and
any other obligations owing by Borrower to Lender.  Lender will notify
Borrower of any debits which Lender makes against Borrower's accounts.  Any
such debits against Borrower's accounts in no way shall be deemed a set-off.

LETTER OF CREDIT FACILITY.  This Promissory Note evidences a letter of credit
facility to be used solely for the purpose of issuing stand-by and/or
commercial letters of credit.

BUSINESS LOAN AGREEMENT.  This Note is subject to and shall be governed by all
the terms and conditions of the Business Loan Agreement dated March 20, 1995
between Lender and Borrower, which Business Loan Agreement is incorporated
herein by reference.

LOAN FEE.  This Note is subject to a loan fee in the amount of Twenty Thousand
and 00/100 Dollars ($20,000.00) plus all out-of-pocket expenses.

GENERAL PROVISIONS.  Lender may delay or forgo enforcing any of its rights or
remedies under this Note without losing them.  Borrower and any other person who
signs, guarantees or endorses this Note, to the extent allowed by law, waive any
applicable statute of limitations, presentment, demand for payment, protest and
notice of dishonor.  Upon any change in the terms of this Note, and unless
otherwise expressly stated in writing, no party who signs this Note, whether as
maker, guarantor, accommodation maker or endorser, shall be released from
liability.  All such parties agree that Lender may renew or extend (repeatedly
and for any length of time) this loan, or release any party or guarantor or
collateral; or impair, fail to realize upon or perfect Lender's security
interest in the collateral; and take any other action deemed necessary by Lender
without the consent of or notice to anyone.  All such parties also agree that
Lender may modify this loan without the consent of or notice to anyone other
than the party with whom the modification is made.

PRIOR TO SIGNING THIS NOTE, BORROWER READ AND UNDERSTOOD ALL THE PROVISIONS OF
THIS NOTE, INCLUDING THE VARIABLE INTEREST RATE PROVISIONS.  BORROWER AGREES TO
THE TERMS OF THE NOTE AND ACKNOWLEDGES RECEIPT OF A COMPLETED COPY OF THE NOTE.

BORROWER:

RADIUS INC.


BY:     /s/ Robert W. Saltmarsh
   ---------------------------------------------
 NAME:  Robert W. Saltmarsh
      ------------------------------------------
 TITLE: VP Finance & CFO
      ------------------------------------------

BY:     /s/ David Pine
   ---------------------------------------------
NAME:   David Pine
     -------------------------------------------
TITLE:  General Counsel & Secretary
     -------------------------------------------

===============================================================================