EXHIBIT 10.02

                        AMENDED AND RESTATED LICENSE AGREEMENT
     
     This Amended and Restated License Agreement (this "License") is made as 
of August 7, 1998 (the "Effective Date") between Radius Inc., a California 
corporation, maintaining its principal place of business at 460 East 
Middlefield Road, Mountain View, CA 94043 ("Radius"), and Korea Data Systems  
(America), a California corporation, maintaining its principal place of 
business at 12300 Edison Way, Garden Grove, CA 92841("KDS").  This License 
replaces and supersedes in its entirety a License Agreement dated June 5, 
1998 between the parties (and related guaranties).

1.   Relationship.  Radius and KDS recently concluded the negotiation of the 
transfer of various Radius brand names and trademarks and related 
intellectual property for use in connection with KDS' computer monitor 
business (the "Transfer").  Pending the Closing  (as defined in the Asset 
Purchase Agreement of even date) of the Transfer, or in the event such 
Agreement does not close for any reason, Radius will license the use of the 
trademarks identified on Exhibit A to this License (the "Trademarks") and the 
"PressView IP" (as defined on Exhibit B) to KDS on the terms and conditions 
set forth below.  During the term of this License, Radius will continue to 
use the Trademarks and PressView IP and reserves all rights to such and 
related goodwill; however, Radius shall not use, directly or indirectly, the 
Trademarks with computer monitors and "graphics adapters" (which for purposes 
of this License, include flat panel displays) with limited exceptions 
described in Section 2.  The parties are independent contractors.  KDS will 
comply with all reasonable criteria and policies developed and modified by 
Radius from time to time in connection with the use of its trademarks by 
licensees generally.  Neither party will issue press releases referring to 
the other or disclose the terms or existence of this License, without the 
other's prior written approval, except as may be required by law.

2.   License Grant.  During the term of this License (or longer, subject to 
the last sentence in Section 6) and subject to Radius' rights below, Radius 
grants KDS (a) all of Radius' rights to use the Trademarks worldwide on an 
exclusive basis solely for purposes of manufacturing, marketing, advertising, 
selling and servicing computer monitors and graphics adapters manufactured by 
or for KDS, and (b) all of Radius' rights to use the Trademarks and PressView 
IP worldwide on a non exclusive basis solely for purposes of manufacturing, 
marketing, advertising, selling and servicing computer hardware manufactured 
by or for KDS other than digital video hardware; all provided that such 
monitors, graphics adapters and computer hardware are of a quality acceptable 
to Radius and KDS remains in good standing under this Agreement  Subject to 
the last sentence of Section 6, this License is nontransferable, 
nonsublicensable and subject to early termination as set forth in Section 6 
below.  Radius reserves all rights and benefits associated with the 
Trademarks and PressView IP and the use of same, including the right to use 
and license the Trademarks and the PressView IP; however, Radius will not use 
or authorize others to use the Trademarks during the term of this Agreement 
in connection with the distribution, manufacturing, marketing, advertising, 
selling and servicing of computer monitors and graphics adapters, except: (a) 
in connection with the distribution of existing inventories of Radius branded 
monitors (whether held by Radius or third parties), (b) in connection with 
the service and support of previously sold Radius and Supermac monitors and 
graphics adapters, and (c)  as previously authorized to its Japanese and 
European master distributors by existing agreements or applicable law.  (The 
parties acknowledge that third parties may continue 

1



to distribute, refurbish and resell previously sold monitors and graphics 
adapters, subject to Radius' trademark rights.)  KDS will not at any time 
during or after this License do anything that may adversely affect the 
validity or enforceability of or contribute to the infringement of the 
Trademarks.  During the term of this License (and thereafter, if the license 
becomes perpetual as set forth in the last sentence to Section 6), Radius 
will use commercially reasonable efforts to (i) maintain the effectiveness of 
its trademark registrations in all countries where the Trademarks are 
currently registered and in good standing as well as (ii) defend the 
Trademarks from infringement by third parties.  If KDS desires trademark 
registration protection beyond what Radius considers reasonable or in any 
other country during the term or desires more assertive trademark enforcement 
against third parties, then Radius will reasonably cooperate in such efforts 
after notice from KDS and at KDS' expense, provided that such registrations 
and actions will be in Radius' name unless Radius elects otherwise.

3.   Payment.  In consideration of the license rights conferred above, KDS 
has paid Radius $1,000,000 and tenders a note to Radius in the amount of 
$5,200,000 in the form attached hereto (the "Note").  The Note is secured in 
the form of the Security Agreement attached and is guarantied by Korea Data 
Sytems Co., Ltd. and Korea Data Systems (USA), Inc. in the form attached (the 
"Guaranties"), all duly executed and delivered to Radius in connection with 
this License.

4.   Miscellaneous.  KDS may not refer to itself as an authorized Radius 
Reseller or agent and is not authorized to use other Radius trademarks or 
intellectual property pursuant to this License.  KDS will not make any 
representation, warranty or guarantee on behalf of Radius.  KDS must disclaim 
warranties and limit liability for Radius with respect to Radius branded 
monitors and graphics adapters sold by or for KDS to the same extent that KDS 
disclaims its own warranties and limits its own liability on other KDS 
monitors and graphics adapters, and in any event, KDS must at least disclaim 
all indirect, punitive, special and consequential damages.  KDS will have the 
exclusive responsibility to support purchasers of Radius branded monitors and 
graphics adapters sold by or through KDS which utilize any of the Trademarks 
or the PressView IP.  KDS shall not refer its customers, distributors or 
resellers to Radius for support. Each party acknowledges that it will have 
access to certain information and materials concerning the other party's 
business, plans, customers, technology and products that are confidential and 
of substantial value to the other party, which value will be impaired if such 
information and materials were disclosed to third parties.  Each party 
further agrees that it will not use such information (except in performance 
of this License), or disclose such information to third parties, and that it 
will not obtain any rights in such information except as specified in this 
License.  Each party will also take every reasonable precaution to protect 
the confidentiality of such information, including but not limited to 
executing confidentiality agreements in form and substance satisfactory to 
the other party.  KDS will indemnify, defend and hold Radius (including its 
officers, directors, shareholders, employees, distributors and agents) 
harmless from all loss, liability, expense (including reasonable attorneys' 
and experts' charges) and claims ("Losses") occasioned by KDS' use of the 
Trademarks and PressView IP or any breach by KDS of this Agreement, except to 
the extent such Losses are caused by Radius' intentional misconduct or gross 
negligence and except to the extent such Losses are caused by the Trademarks 
or PressView IP's infringement or violation of the rights of any third 
parties.  

5.   Limitations.  NEITHER PARTY MAKES ANY REPRESENTATION OR WARRANTY OF ANY 
KIND, EXPRESS, IMPLIED OR STATUTORY, INCLUDING BUT NOT LIMITED TO WARRANTIES 
OF

2



MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE WITH RESPECT TO THE 
LICENSE, EXCEPT THAT (I) EACH PARTY HAS AUTHORITY TO ENTER INTO THIS LICENSE 
AND (II) TO EACH PARTY'S KNOWLEDGE ENTRY INTO THIS LICENSE DOES NOT VIOLATE 
ANY DOCUMENT OR ORDER AND IS NOT SUBJECT TO LITIGATION.  RADIUS' LIABILITY 
UNDER THIS AGREEMENT, WHETHER RESULTING FROM STATUTE, TORT, STRICT LIABILITY, 
BREACH OF CONTRACT OR OTHER FORM OF ACTION, SHALL BE LIMITED TO THE ACTUAL 
AMOUNTS PAID BY KDS UNDER THIS LICENSE AND SHALL IN NO EVENT INCLUDE 
INCIDENTAL, INDIRECT, SPECIAL, PUNITIVE OR CONSEQUENTIAL DAMAGES OF ANY KIND, 
EVEN IF RADIUS IS AWARE OF THE POSSIBILITY OF SUCH DAMAGES. SIMILARLY, KDS' 
LIABILITY TO RADIUS HEREUNDER SHALL BE LIMITED TO THE PAYMENTS DUE PLUS ANY 
LIABILITY UNDER INDEMNIFICATION PROVISIONS OF SECTION 4 ABOVE.

6.   Term.  The term of this License will expire on any date the Transfer is 
closed and the final three monthly Note payments are prepaid to Radius.  (The 
Note, Security Agreement and Guaranties will survive such termination, 
however.) Prior to such time, either party may terminate this License prior 
to its expiration if the other party fails to perform any material obligation 
under this License and such failure continues unremedied for thirty business 
days after written notice, in which event, KDS' right to use the Trademarks 
and PressView IP shall immediately cease.  NEITHER PARTY SHALL BE LIABLE TO 
THE OTHER AS A RESULT OF THE EXPIRATION OR TERMINATION OF THIS LICENSE 
PURSUANT TO ITS TERMS, INCLUDING FOR ANY SUMS EXPENDED, DAMAGES SUFFERED OR 
LIABILITIES INCURRED BY EITHER IN THE CONDUCTING OR PROMOTING OF THEIR 
BUSINESS, OR FOR LOST PROFITS OR CONSEQUENTIAL DAMAGES OF ANY KIND. KDS' 
obligations to pay Radius all amounts due under this License will survive the 
expiration and any termination of this License except termination by Radius 
without cause, along with the provisions of Sections 4, 5 and 7.  In the 
event there is no Transfer and KDS remains in good standing under this 
License, then after the Note has been timely paid in full the license rights 
conferred in Section 2 above will become fully paid up (subject to all 
previously accrued obligations having been paid), perpetual, irrevocable, 
transferable (after notice to Radius) and sublicensable (after notice to 
Radius).

7.   General.  This License is not assignable by either party without the 
prior written consent of the other party, which shall not be unreasonably 
withheld, except in connection with a merger or disposition of substantially 
all of the assignor's related assets or business.  Any other attempted 
assignment will be null and void.  These provisions shall be binding upon and 
inure to the benefit of the parties, their successors and permitted assigns.  
All notices and demands hereunder shall be in writing and shall be served by 
personal service or by first class certified or registered mail, or by any 
return receipt express courier to the address indicated on the signature page 
of this License, or to any other address of the receiving party designated by 
written notice.  The parties acknowledge that breaches of this License 
warrant equitable or injunctive relief in addition to other remedies.    This 
License constitutes the entire agreement between the parties pertaining to 
its subject matter and supersedes any prior or contemporaneous written or 
oral agreements between the parties.  The parties acknowledge that they are 
not entering into this License on the basis of any representations not 
expressly made in this License.  Any modifications of this License must be in 
writing and signed by both parties. The waiver by one party of any default of 
the other party shall not waive subsequent defaults of the same or different 
kind.  This License shall become binding only after it has been signed 
jointly by Radius and KDS.  This License will be 

3



governed by and construed in accordance with the laws of the United States 
and the State of California as applied to agreements entered into and to be 
performed entirely within California between California residents.  The 
parties hereby submit to the jurisdiction of, and waive any venue objections 
against, the United States District Court for the Northern District of 
California and the Superior Court of the State of California for the County 
of Santa Clara in any litigation arising out of or related to this License.  
THE PARTIES EXPRESSLY WAIVE THEIR RIGHTS TO A TRIAL BY JURY IN ANY SUCH 
LITIGATION.  The parties and their respective counsel have negotiated this 
License.  Therefore, this License will be interpreted without any strict 
construction in favor of or against either party.  In the event any provision 
of this License is determined to be invalid or unenforceable by a court of 
competent jurisdiction, then the remaining provisions will remain effective.  
In such event, the parties agree to negotiate in good faith to substitute a 
valid and enforceable provision that preserves the intent and economic effect 
of the original provision.  If the parties cannot agree on such a substitute 
provision, the court will establish a provision that is enforceable that 
follows the parties expressed intent and economic effect of the unenforceable 
clause as closely as possible.  This License may be executed in two 
counterparts by original or facsimile signature, each of which when so 
executed shall be deemed an original, and both of which together shall 
constitute one instrument.  Use of the word "including" is inclusive, as if 
"without limitation" followed each instance.

The parties execute this License on the dates specified below.

RADIUS INC.                             Korea Data Systems (America), Inc.

Signature and Date:                     Signature and Date:

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


Name and Title:                         Name and Title:
               --------------------                     ----------------------

4



                                PROMISSORY NOTE

Amount: $5,200,000.00         August 7, 1998      Mountain View, California


     FOR VALUE RECEIVED, the undersigned "Maker" promises to pay to Radius 
Inc., or order (the "Holder"), at Mountain View, California, or at such place 
as the Holder of this Note may from time to time designate, the principal sum 
of five million two hundred thousand and no hundredths dollars 
($5,200,000.00), without offset or deduction in fourteen monthly installments 
of principal of $350,000.00 each on beginning on the date of this Note and 
continuing on the first business day of each month thereafter until October 
1, 1999, on which date a final payment of $300,000 principal shall be made 
 .(all unless "accelerated" as set forth below).  No interest will be due on 
timely payments of principal; however, interest on delinquent or accelerated 
principal will accrue at the monthly rate of one percent per month or any 
lower legal maximum.  This Note may be prepaid at any time without penalty.  
No notice of payment due or made is required.  

     In the event that Maker fails to timely pay any sum due under this Note 
after five days' notice from Holder, a late charge of the lesser of $10,000 
or five percent of the delinquent amount will become immediately due and 
payable in addition to such sum and Holder can elect on ten days' notice to 
Maker to accelerate the entire outstanding balance due.  In the latter event, 
the entire indebtedness must be paid to Holder within fifteen days after 
Holder sends its notice of acceleration election to Maker and will accrue 
interest thereafter at the rate set forth above.  Maker also promises to pay 
Holder's costs of collection and reasonable attorneys' charges if Holder 
seeks legal redress to recover the amount due under this Note.

     This Note is governed by California law and forum and is intended to be 
negotiable or assignable at Holder's election.

     IN WITNESS WHEREOF, the undersigned has executed this Note as of the 
date written above.

Maker: Korea Data Systems (America), Inc.
By John Hui, President
                                                                 
- ---------------------------------------           -------------------------
Please sign                                       Date

5



                                          
                                 SECURITY AGREEMENT
                                          
     This Security Agreement (the "AGREEMENT") is made and entered into as of 
August 7, 1998 by Korea Data Systems (America), Inc., a California 
corporation ("DEBTOR"), in favor of Radius Inc., a California corporation 
(the "SECURED PARTY").

                                      RECITALS

     A.   Secured Party has or will extend credit to Debtor in the amount of 
$5.2 million (the "TOTAL PRINCIPAL") under the terms of a certain Amended and 
Restated License Agreement, Asset Purchase Agreement and Promissory Note of 
even date executed by Debtor in favor of the Secured Party (collectively, the 
"Transfer Agreement"); and

     B.   Secured Party desires to obtain, and Debtor desires to give, 
security for the full and punctual performance of the obligations created by 
the Transfer Agreement and any substitutions or extensions thereof and any 
expenses, fees or costs associated therewith (the "OBLIGATIONS"), all as more 
fully set forth below;

     NOW, THEREFORE, in consideration of the extension of credit by Secured 
Party and the covenants and agreements set forth in the Transfer Agreement 
and this Agreement, the parties agree as follows:

     1.   SECURITY AGREEMENT.  To secure performance of the Obligations and 
Debtor's obligations hereunder, Debtor hereby grants Secured Party a security 
interest in the rights and property set forth on EXHIBIT A hereto (the 
"COLLATERAL") with the security interest in the Collateral being senior to 
all other security interest holders.  

          1.1    COVENANTS.  The security interest created in this Section 1 
is given to secure all of the Obligations and the obligations of Debtor 
hereunder. While such security interest is in existence, Debtor will: (a) 
promptly pay, when due, all taxes and assessments levied or assessed against 
the Collateral, or any part thereof, or for its use or operation and (b) 
notify Secured Party when requested from time to time of the physical 
location of such Collateral if tangible.  The physical location of any 
tangible collateral is currently at the address of Debtor set forth below.   

          1.2    DEFAULT.  In the event of default under the Transfer 
Agreement or this Agreement:

                 1.2.1    Secured Party may exercise any or all of its rights 
and remedies under California law, and any other applicable laws, and may 
elect to offset, against any payment due from Secured Party to Debtor, the 
whole or any part of any indebtedness of Debtor to the Secured Party.

                 1.2.2    While Debtor is in default, Debtor will:  (a) 
deliver to Secured Party from time to time, as requested by such Secured 
Party, current lists of Collateral; (b) not dispose of Collateral except on 
terms approved by Secured Party or in the ordinary course of Debtor's 
business; and (c) assemble and deliver all Collateral to a designated 
representative of Secured Party at a reasonably convenient place designated 
by Secured Party.  Debtor hereby consents to the entry of Secured Party (or a 
Secured Party agent) following reasonable notice on Debtor's business 
premises, between the hours of 8:00 a.m. and 5:00 p.m. on Monday through 
Friday, in order to enforce the Secured Party's rights or remedies set forth 
herein or given to Secured Party by law or in equity, all of which shall be 
cumulative.

                 1.2.3    If required by law, Secured Party will give Debtor 
reasonable notice of the time and place of any public sale of the Collateral, 
or any part thereof, or of the time after which any private sale or any 
intended disposition of the Collateral is to be made.  Unless otherwise 
provided by law, the requirement of reasonable notice shall be met if such 
notice is delivered in accordance with Section 3.6 below at least thirty (30) 
calendar days before the time of such intended sale or other disposition.  
Upon such sale and to the extent permitted by law, Secured Party may bid for 
and purchase all or any portion of the Collateral to the extent and for 
purchase price agreed to by Secured Party may bid on its sole behalf 
therefor.  On compliance with the terms of sale, Secured Party may hold, 
retain, possess and dispose of such Collateral in its own absolute right, 
without further accountability.  Debtor agrees to reimburse Secured 

6



Party, upon demand, for any and all costs (including, by way of example, 
reasonable attorneys' fees and expenses) incurred or paid by Secured Party in 
exercising its rights or remedies or protecting its interests under this 
Agreement.

          1.3    PERFECTION IN GENERAL.  Debtor agrees to execute and deliver 
all financing statements, PTO cover sheets, UCC-1s or other documents, or 
procure any document reasonably deemed necessary by Secured Party to perfect 
the security interest granted in this Section 1 and to confer a security 
interest senior to all other security interests in the Purchased Assets 
portion of the Collateral.  The current form of UCC-1 is attached as Exhibit 
B.  The current form of PTO cover sheet is attached as Exhibit C.  Upon 
performance of all of Debtor's obligations under and secured hereby, Secured 
Party agrees to execute and deliver such documents as may be reasonably 
requested by Debtor in order to release the Collateral from the security 
interest granted herein.

     2.   REPRESENTATIONS AND WARRANTIES OF DEBTOR.  Debtor hereby 
represents, warrants and agrees as follows:

          2.1    LITIGATION.  Debtor is neither a party to, nor, except as 
disclosed in the Transfer Agreement, has it any notice or knowledge of, any 
pending or threatened action, suit, proceeding or investigation involving it, 
at law or in equity or otherwise, in, before or by a court or any 
governmental board, commission, agency, department or officer, in which an 
adverse determination would have a material adverse effect on the assets or 
financial condition of Debtor or the Collateral described herein.

          2.2    NO RESTRICTION OR TRANSACTION.  Debtor is not subject to any 
charter provision, bylaw, indenture, mortgage, lien, lease agreement, 
instrument, law, rule, regulation, order, judgment or decree or any other 
restriction which would interfere with the consummation of the transaction 
contemplated by this Agreement.  This Agreement is a valid and enforceable 
obligation of Debtor, enforceable in accordance with its terms.

          2.3    COLLATERAL.  Debtor has good and marketable title to the 
Collateral subject to no material mortgage, lien, pledge, claim, charge or 
encumbrance, security interest or other defect in title, excluding those 
which may have existed prior to the effective date of the Transfer Agreement 
arising by or through Secured Party.  Subject to such security interests and 
to Secured Party's security interest in the Collateral, Debtor is, and will 
remain while any Obligation is outstanding, the sole owner of the Collateral 
with full right to transfer or encumber same without obtaining the consent or 
approval of any other person or entity, except as disclosed in the Transfer 
Agreement.  Debtor hereby agrees, without the prior written consent of 
Secured Party, other than in the ordinary course of business and other than 
in a sale and leaseback transaction, not to sell, lend or transfer ownership 
of a substantial portion of the Collateral while the Obligations, or any part 
thereof, are outstanding.

     3.   GENERAL PROVISIONS.

          3.1    AMENDMENT AND WAIVER.  No failure or delay by Secured Party 
in exercising any right, power or privilege under this Agreement shall 
operate as a waiver thereof, nor shall any single or partial exercise thereof 
preclude any other or further exercise thereof or of any other right, power 
or privilege.  No waiver shall be deemed to be made by Secured Party of any 
of its rights under this Agreement unless the same shall be in writing, and 
each waiver, if any, shall be a waiver only with respect to the specific 
instance involved and shall in no way impair the rights of Secured Party or 
the obligations of Debtor to Secured Party in any other respect at any other 
time.  This Agreement may not be altered or amended except by an agreement in 
writing signed by Debtor and Secured Party.

          3.2    ASSIGNMENT.  This Agreement shall be binding upon Debtor, 
its representatives, successors and assigns and shall inure to the benefit of 
Secured Party, its heirs, representatives, successors and assigns, except 
that Debtor shall not voluntarily assign any or all of its obligations 
hereunder. This Agreement shall continue in full force and be binding upon 
Debtor, and its successors notwithstanding the merger, liquidation or 
dissolution of Debtor.

          3.3    SEVERABILITY.  If any provision of this Agreement is held to 
be unenforceable for any reason, such provision shall be adjusted, if 
possible, to the extent necessary in order to achieve the intent of the 
parties or shall be stricken from this Agreement if adjustment is not 
possible.  In any event, all other provisions of this Agreement shall be 
deemed valid and enforceable.

7



          3.4    ENTIRE AGREEMENT.  This Agreement (in connection with the 
Transfer Agreement) contains the entire agreement of the parties and 
supersedes any and all prior negotiations, correspondence, understandings and 
agreements between the parties regarding the subject matter hereof.

          3.5    NOTICES.  Any demand or other notice required or permitted 
to be given to a party hereunder shall be deemed duly given or delivered if 
personally delivered or if sent by certified mail, postage prepaid, addressed 
to the receiving party at its address set forth under its signature or to 
such other address as the receiving party shall duly notice the sending party 
in writing (which demand or notice shall be effective on deposit in the 
United States mail, if delivery is by mail, and on receipt, if personally 
delivered).

          3.6.   TIME.  Time is of the essence of this Agreement.

          3.7    GOVERNING LAW AND FORUM.  This Agreement shall be governed 
by and construed and interpreted in accordance with the laws of the State of 
California.  Debtor, by its execution of this Agreement, hereby irrevocably 
submits to the personal jurisdiction of the state courts of the State of 
California  and of the United States District Court for the Northern District 
of California that are located in Santa Clara County, California for the 
purpose of any suit, action or other proceeding arising out of or based upon 
this Agreement.

          3.8    COUNTERPARTS.  This Agreement may be entered into in any 
number of counterparts, each of which will be deemed an original and all of 
which, taken together, will constitute one and the same Agreement.
     
          3.9    ATTORNEYS' CHARGES. Debtor agrees to pay all reasonable 
attorneys' fees, court costs and all other costs and expenses which may be 
incurred by Secured Party in the enforcement of this Security Agreement.
     
     IN WITNESS WHEREOF, this Agreement has been duly executed by persons 
duly authorized by or on behalf of the parties as of the date first above 
written.

DEBTOR:

KOREA DATA SYSTEMS (AMERICA), Inc.

By:   
   ----------------------------------
Its:
     --------------------------------

     Address:    

SECURED PARTY:

RADIUS INC.

By:   
   ----------------------------------
Its:
     --------------------------------

Address: 

8



                                      EXHIBIT A

                                      COLLATERAL

This Financing Statement covers:

     (a)   the license under the Amended and Restated License Agreement dated 
August 7, 1998, the Purchased Assets and the Buyer's License (as defined in 
the Transfer Agreement) and all Intellectual Property Rights therein (as 
defined in the Transfer Agreement);

     (b)  All proceeds and products of any and all of the foregoing 
collateral and, to the extent not otherwise included, all payments under 
insurance or in connection with any indemnity, warranty or guaranty payable 
by reason of loss or damage to, or otherwise with respect to, any of the 
foregoing collateral. 

9



                                      EXHIBIT B

                                 ATTACH INITIAL UCC-1

10



                                      EXHIBIT C

                            ATTACH INITIAL PTO COVER SHEET


11




                                       GUARANTY

     This Guaranty is made and given as of August 7, 1998 by 
[Korea Data Systems Co., Ltd. or Korea Data Systems (USA), Inc.] with a place 
of business at _______________________________________ 
______________________________________________________________________________
 ("GUARANTOR") in favor of Radius Inc., a California corporation ("SELLER").

                                   R E C I T A L S

     A.   Guarantor is affiliated with Korean Data Services (America), Inc. 
("BUYER").

     B.   Guarantor desires to induce Seller to extend credit to Buyer under 
a certain Amended and Restated License Agreement and Asset Purchase Agreement 
(and related agreements and instruments including a promissory note and 
security agreement) dated of even date herewith between Seller and Buyer 
(collectively, the "TRANFER AGREEMENT") by providing Seller with this 
Guaranty.  It is a condition precedent, and a material inducement, to the 
extension of credit by Seller to Buyer under the Transfer Agreement that 
Guarantor makes and provides this Guaranty to Seller. Guarantor will benefit 
significantly as a result of such extension of credit.

     NOW, THEREFORE, as a material inducement to Seller to enter into the 
Transfer Agreement, and in consideration of loans made or to be made by 
Seller under the Transfer Agreement, and for other good and valuable 
consideration, Guarantor hereby agrees with Seller as follows:

          1.     MEANINGS OF CAPITALIZED TERMS.  Unless they are otherwise 
expressly defined herein, each capitalized term used in this Guaranty will 
have the same meaning given to such term in the Transfer Agreement.

          2.     GUARANTY.  As a material inducement and consideration for 
Seller to enter into the Transfer Agreement and to extend credit to Buyer 
under the Transfer Agreement, which Seller is unwilling to do without 
Guarantor's agreements and guaranty hereunder, Guarantor hereby guarantees 
and promises to pay Seller, or order, on demand, in lawful money of the 
United States of America, any and all Indebtedness (as defined below) of 
Buyer to Seller when such Indebtedness is due.  The liability of Guarantor 
under this Guaranty is exclusive and independent of any security for or other 
guarantee of the Indebtedness of Buyer, whether executed by Guarantor or any 
other party, and the liability of Guarantor under this Guaranty shall not be 
affected or impaired by (a) any Indebtedness exceeding Guarantor's liability; 
(b) any other continuing or other guaranty, or undertaking or liability of 
Guarantor or of any other party as to any Indebtedness of Buyer; (c) any 
payment on or in reduction of any other guaranty or undertaking;  or (d) any 
payment made on the Indebtedness which Seller repays to Buyer pursuant to 
court order in any bankruptcy, reorganization, arrangement, moratorium, or 
other debtor relief proceeding, and Guarantor hereby waives any right to the 
deferral or modification of Guarantor's obligations hereunder by virtue of 
any such proceeding.

          3.     INDEBTEDNESS DEFINED.  The word "INDEBTEDNESS" as used 
herein means any and all debts, obligations, or liabilities of Buyer to 
Seller under the Transfer Agreement executed and delivered by Buyer 
thereunder (including but not limited to principal, accrued interest and 
attorneys' fees) whether or not recovery of such Indebtedness may now be or 
may hereafter become barred by any statute of limitations, or whether such 
Indebtedness may now be or may hereafter otherwise become unenforceable 
against, or uncollectible from, Buyer for any reason, including but not 
limited to Buyer's bankruptcy or insolvency, other principles of equity or 
usury laws.

          4.     SEPARATE AND INDEPENDENT OBLIGATIONS; CERTAIN WAIVERS.  The 
obligations of Guarantor under this Guaranty are separate and independent of 
the obligations of Buyer under the Transfer Agreement and a separate action 
or actions may be brought and prosecuted against Guarantor, whether or not 
any action is brought 

12



against Buyer or whether Buyer be joined in any such action or actions; and 
Guarantor hereby waives the benefit of any statute of limitations affecting 
its liability under this Guaranty or the enforcement of this Guaranty, to the 
maximum extent permitted by law.  Any part payment by Buyer or other 
circumstances which operate to toll any statute of limitations as to Buyer 
will operate to toll the statute of limitations as to Guarantor. Guarantor 
further agrees that recourse may be had under this Guaranty against any and 
all property and property interests owned by Guarantor, whether legally or 
beneficially, including but not limited to any property which is such 
Guarantor's separate property and any property in which such Guarantor has a 
community property interest, to satisfy such Guarantor's obligations under 
this Guaranty.

          5.     AUTHORIZATION.  Guarantor authorizes Seller, without notice 
or demand or any further or additional consent of Guarantor, and without 
affecting Guarantor's liability hereunder, to at any time and/or from time to 
time:  (a) renew, extend, accelerate or otherwise change the time for payment 
of, or otherwise change or modify the terms of, any Indebtedness or any part 
thereof ; and (b) apply the collateral and direct the order or manner of sale 
thereof as Seller in its discretion may determine, and Guarantor agrees that 
no such renewal, extension, acceleration, or other change, or any such 
application or non-application of collateral shall relieve Guarantor of any 
of Guarantor's obligations or liabilities hereunder.  Seller may, without 
notice to Seller, assign this Guaranty in whole or in part and any rights in 
related collateral.

          6.     WAIVERS OF GUARANTOR. Guarantor expressly waives any right 
to require Seller to:  (a) proceed against Buyer, or to proceed against Buyer 
prior to proceeding against Guarantor under this Guaranty or otherwise; (b) 
proceed against any other party or guarantor; (c) protect, preserve or 
perfect any of Seller's rights in or to, or to proceed against, or exercise 
any rights or remedies of a secured creditor with respect to, or to exhaust, 
any collateral, security, mortgage, deed of trust, security interest or lien 
held by Seller in any assets or properties of Buyer; or (c) pursue any other 
right or remedy in Seller's power whatsoever with respect to the Indebtedness 
or any part thereof. Seller may, at its election, exercise or refrain from 
exercising any right or remedy it may have against Buyer or any security 
interest in Buyer's assets (including without limitation the right to 
foreclose upon any such security by judicial or nonjudicial sale), without 
thereby affecting or impairing in any way Guarantor's liability hereunder, 
except to the extent that Buyer has reduced the amount of the Indebtedness.  
In addition, Guarantor hereby also waives:  (a) any defense arising out of 
the absence, impairment or loss of any right of reimbursement or subrogation 
or other right or remedy of such Guarantor against Buyer or any such 
security; (b) any defense arising by reason of any disability or other 
defense of Buyer or by reason of the cessation from any cause whatsoever of 
the liability of Buyer to Seller; and (c) all presentments, demands for 
performance, notices of nonperformance, protests, notice of protest, notices 
of dishonor, and notices of acceptance of this Guaranty and of the existence, 
creation or incurring of new or additional Indebtedness.

          7.     GUARANTOR'S UNDERSTANDING.  Guarantor warrants and agrees 
that each of the authorizations and waivers set forth in Sections 5 and 6 
above are made with Guarantor's full knowledge and understanding of their 
significance and consequences, and that under the circumstances, such 
authorizations and waivers are reasonable and not contrary to public policy 
or law.  If any of said authorizations or waivers are determined to be 
contrary to any applicable law or public policy, such authorizations and 
waivers will nevertheless be effective to the fullest extent permitted by law 
or public policy.

          8.     SUBROGATION.  Until all Indebtedness shall have been paid in 
full, Guarantor will have no right of subrogation to any right of Seller 
against Buyer, and Guarantor waives any right to enforce any remedy which 
Seller now has or may hereafter have against Buyer, and waives any benefit 
of, and any right to participate in, any security now or hereinafter held by 
Seller.  

          9.     INFORMATION.  Guarantor assumes the responsibility for being 
and keeping itself informed of the financial condition of Buyer and of all 
other circumstances bearing upon the risk of nonpayment of the Indebtedness 
and agrees that Seller will have no duty to advise Guarantor of any 
information regarding such condition or any such circumstances.  

          10.    SUBORDINATION.  In the event of any default by Buyer under the
Transfer Agreement or other failure to pay any sum when due, then any debt or
obligation of Buyer now or hereafter held by Guarantor is hereby 

13



fully subordinated in right of payment to the repayment of the Indebtedness 
and any such debt or obligation of Buyer to Guarantor will, if Seller so 
requests, be collected, enforced and received by Guarantor as trustee for 
Seller and be paid over to Seller on account of the Indebtedness, but without 
reducing or affecting in any manner the liability of Guarantor under the 
other provisions of this Guaranty. 

          11.    JURISDICTION; VENUE.  Guarantor, by its execution of this 
Guaranty, hereby irrevocably submits to the personal jurisdiction of the 
state courts of the State of California  and of the United States District 
Court for the Northern District of California that are located in Santa Clara 
County, California for the purpose of any suit, action or other proceeding 
arising out of or based upon this Guaranty.

          12.    AMENDMENT; WAIVER.  No amendment or modification of this 
Guaranty may be made unless it is set forth in writing and signed by both 
Guarantor and Seller.  No waiver of any right of Seller under this Guaranty 
will be effective unless expressly set forth in a writing signed by Seller.  
No course of dealing between the parties will operate as a waiver of Seller's 
rights under this Guaranty.  A waiver by Seller on any one occasion will not 
be construed as a bar to or waiver by Seller of any right or remedy on any 
future occasion. 

          13.    ATTORNEYS' FEES.  Guarantor agrees to pay all reasonable 
attorneys' fees, court costs and all other costs and expenses which may be 
incurred by Seller in the enforcement of this Guaranty.

          14.    SUCCESSORS AND ASSIGNS.  The provisions of this Guaranty 
will inure to the benefit of, and be binding on, each party's respective 
heirs, successors and assigns; EXCEPT THAT Guarantor may not assign or 
delegate any of its rights or obligations under this Guaranty without 
Seller's prior written consent.

          15.    SEVERABILITY.  The invalidity or unenforceability of any 
term or provision of this Guaranty will not affect the validity or 
enforceability of any other term or provision hereof.  The headings in this 
Guaranty are for convenience of reference only and will not alter or 
otherwise affect the meaning of this Guaranty. 

          16.    EXECUTION IN COUNTERPARTS.  This Guaranty may be executed in 
any number of counterparts, which together will constitute one instrument.

          17.    GOVERNING LAW.  This Guaranty will be governed by and 
construed in accordance with the laws of the State of California.

          18.    ENTIRE AGREEMENT.  This Guaranty will constitute the entire 
agreement and understanding of the parties with respect to the subject matter 
hereof and supersedes any and all prior understandings or agreements 
regarding such subject matter.

     IN WITNESS WHEREOF, the undersigned Guarantor has executed and delivered 
this Guaranty effective as of the date first above written.

Accepted by:


"SELLER"                           "GUARANTOR"


Name:                              Name:                            
     -------------------------          ----------------------------

By:                                By:                               
   ---------------------------         ------------------------------

Title:                             Title:                             
       --------------------------         ----------------------------

14