Exhibit 10.01




December 19, 1996

Mr. Mark Housley
772 Rosewood Drive
Palo Alto, CA 94303 

Re:  EMPLOYMENT TERMS

Dear Mr. Housley:

Pursuant to our recent discussions, this letter sets forth the terms of your
future employment with Radius Inc. (the "Company") as well as our understanding
with respect to any termination of such employment relationship.  

1.   POSITION AND DUTIES:  You will be employed by the Company as its President
and Chief Operating Officer reporting to the Company's Chief Executive Officer,
Charles W. Berger.  You accept employment with the Company on the terms and
conditions set forth in this Agreement, and you agree to devote your full
business time, energy and skill to your duties at the Company.  These duties
will include, but not be limited to, any duties consistent with your position,
as well as any other reasonable duties which may be assigned to you from time to
time by the Chief Executive Officer or the Board of Directors (the "Board").  
These duties will begin on January 6, 1997.  In the event that the Company's
Chief Executive Officer resigns or is removed, then you will be offered such
additional position if the Board is satisfied with your performance and you will
report to the Chairman of the Board.

At the next Board of Directors meeting, the Board will appoint you to a position
on the Board.

2.   TERM OF EMPLOYMENT:  Your employment by the Company is for no specified
term, and may be terminated by you or the Company at any time, with or without
cause, subject to the provisions of Paragraphs  4 and 5 below.

3.   COMPENSATION:  You will be compensated by the Company for your services as
follows:

     (a)  SALARY:  You will be paid a monthly salary of $16,667.00, less
applicable withholding, in accordance with the Company's normal payroll
procedures.  Your salary will be reviewed by the Chief Executive Officer and the
Board on an annual basis, and may be subject to upward adjustment based upon
various factors including, but not limited to, your performance, the Company's
profitability, and the prevailing annual inflation rate.

     (b)  BONUS:  You will be eligible to receive a semi-annual bonus at the end
of each fiscal half year (March 31 and September 30).   For the fiscal half year
ending March 31, 1997, your target and guarantied bonus is $25,000 (i.e., 50% of
base pay), based on operating margin goals (per the 1997 Plan attached as
Schedule 1) with a 50% accelerator over 100% performance and a 200% performance
cap.  For the second half 


Housley Letter Agreement                                                    1



year ending September 30, 1997, your target bonus is $50,000 and the 
guarantied bonus is $25,000.  Thereafter, there is no guarantied bonus, the 
target bonus will remain 50% of base pay  and unless performance equals or 
exceeds 80% of the operating margin goal, no bonus will be paid. Operating 
margin goals will be reestablished each year with Board approval.  The same 
operating margin goals will apply to all officers participating in this form 
of bonus compensation program.  If the Board terminates the program after 
fiscal year 1997, then you and the Company will  negotiate an alternative 
form of program which provides reasonably equivalent incentive.

     (c)  BENEFITS:  You will have the right, on the same basis as other
executive employees of the Company, to participate in and to receive benefits
under all of the Company's medical, disability or other plans, as well as under
the Company's vacation and business expense reimbursement policies.  

     (d)  STOCK OPTIONS:  You will be granted a nonqualified stock option to
purchase 1,000,000 shares of the Company's common stock (the "Shares").   The
exercise price of the Shares will be equal to the closing price of the Company's
common stock on the NASDAQ Small Cap Market System on the last trading day prior
to the date the option is granted.  The option will be granted on the business
day following the date on which you sign and return this letter.  Your option
will vest starting on your first day of employment with the Company as Chief
Operating Officer  at the rate of 4% per month in arrears.  The Company will 
prepare and file with the Securities and Exchange Commission a registration
statement on Form S-8 covering all of the Shares.  The form of option agreement
is attached as Schedule 2.

4.   BENEFITS UPON VOLUNTARY TERMINATION:  In the event that you voluntarily
resign from your employment with the Company, you shall be entitled to no
compensation or benefits from the Company other than those earned under
Paragraph 3 through the date of your termination.  You agree that in the event
you voluntarily terminate your employment with the Company, you shall provide
the Company with one month's written notice of your termination.  The Company
may, in its sole discretion, elect to waive all or any part of such notice
period and accept your voluntary termination at an earlier date.


5.   BENEFITS UPON OTHER TERMINATION:  In the event your employment is
terminated by the Company for the reasons set forth below, you shall be entitled
to the following:
     
     (a)  TERMINATION FOR CAUSE:  If your employment is terminated by the
Company for cause, you shall be entitled to no compensation or benefits from the
Company other than those earned under Paragraph 3 through the date of your
termination.  For purposes of this Agreement, a termination "for cause" occurs
if you are terminated for any of the following reasons:  (i) theft, dishonesty,
or falsification of any employment or Company records; (ii) improper material
disclosure of the Company's confidential or proprietary information; (iii) your
conviction of a felony which materially impairs your ability to perform your
duties under this Agreement; (iv) any material violation by you of the Company's
insider trading policy; or (v) your willful and persistent refusal to follow the
instructions of the Chief Executive Officer or the Board.
     
     (b)  TERMINATION FOLLOWING AN ACQUISITION.  In the event of the sale of all
or substantially all of the assets of the Company, the merger or consolidation
of the Company with or into another corporation, the acquisition of more than
fifty percent 


Housley Letter Agreement                                                    2



(50%) of the outstanding shares of the Company by a single person or a group 
of related persons (such events are collectively referred to hereinafter as 
an "Acquisition") following which you are not offered your position as 
President and Chief Operating Officer of the surviving entity, the Board of 
Directors of the surviving entity (the "Surviving Board") may at its option 
request that you remain available to assist the surviving entity on up to a 
full time basis for six months following the effective date of the 
Acquisition and for up to an additional six months at up to 20% of full time. 
If you comply with the Surviving Board's request to assist the surviving 
entity during this 12 month period (the "Transition Period") or if the 
Surviving Board elects not to request your services during the Transition 
Period, you will be entitled to the following benefits:  (i) you will 
continue to receive your normal salary and benefits during the Transition 
Period and (ii)  your option will vest as set forth below.  During the 
Transition Period you will continue to vest at the rate of 4% per month.  At 
the end of the Transition Period any remaining unvested shares will 
immmediately vest. However, in no event will the total number of Shares 
available to you under your options be increased.  The Transition Shares will 
vest on a monthly basis over the Transition Period (i.e. 1/12 of the total 
Transition Shares per month). 
     
     (c)  OTHER TERMINATION:   If your employment is terminated by the Company 
for any reason other than cause (including your death or disability) or
following an Acquisition, you shall continue to be paid for the next six months
at your then-current salary rate, less applicable withholding, in accordance
with the Company's normal payroll procedures.  You shall also continue to vest
in the Shares according to the schedule specified in Paragraph 3(e) during the
six month period that you continue to receive your salary from the Company, and
your option will remain exercisable for a period of three additional months
after your option stops vesting.   In addition to the severance benefits
described in this Paragraph, you shall also be entitled to receive any
compensation and benefits which you have earned under Paragraph 3(c) through the
date of your termination.

     (d)  RELEASE:  The Company's obligations to provide you with the severance
benefits described in Sections 5(b) and (c) above will be contingent upon your
execution (at the time your employment is terminated) of the Release attached to
this Agreement (as Schedule 3) and the completion of the seven (7) day
revocation period described in the Release, if applicable.


6.   CONFIDENTIAL AND PROPRIETARY INFORMATION:  Upon your employment you agree
to sign the Company's standard Employee Nondisclosure and Invention Assignment
Agreement attached as Schedule 4.  You further agree that you shall not breach
any obligation which you have to any of your former employers with respect to
their confidential or proprietary information during your employment with the
Company.
     
7.   EMPLOYMENT ELIGIBILITY VERIFICATION:  You agree to provide the Company with
appropriate documentation establishing your identity and eligibility for
employment in the United States within three days of your employment as required
by the Immigration and Reform Control Act of 1986.

8.   DISPUTE RESOLUTION:  In the event of any dispute or claim relating to or
arising out of our employment relationship or this Agreement (including, but not
limited to, any claims of wrongful termination or age or other discrimination),
we agree that all such disputes shall be fully and finally resolved by binding
confidential arbitration conducted by the American Arbitration Association in
Santa Clara County, California; 


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provided, however, that this arbitration provision shall not apply to any 
disputes or claims relating to or arising out of your misuse or 
misappropriation of the Company's trade secrets or proprietary information.

9.   ATTORNEYS' FEES:  The prevailing party shall be entitled to recover from
the losing party its attorneys' fees and costs incurred in any action brought to
enforce any right arising out of this Agreement.

10.  INTERPRETATION:  This Agreement shall be interpreted in accordance with and
governed by the laws of the State of California.

11.  ASSIGNMENT:  In view of the personal nature of the services to be performed
under this Agreement by you, you shall not have the right to assign or transfer
any of your obligations hereunder.

12.  ENTIRE AGREEMENT:  This letter constitutes the entire Agreement between you
and the Company regarding the terms and conditions of your employment, and it
supersedes all prior negotiations, representations or agreements between you and
the Company regarding your employment, whether written or oral.

13.  MODIFICATION:  This Agreement, and the Release attached hereto, may only be
modified or amended by a supplemental written agreement signed by you and an
authorized member of the Board.

We look forward to working with you at Radius Inc.  Please sign this letter on
the space provided below to acknowledge your acceptance of the terms of this
Agreement.

Sincerely,


Charles W. Berger
Chairman and Chief Executive Officer

I agree to and accept employment with Radius Inc. on the terms and conditions
set forth above. 


Date: December 20, 1996                By: /s/ 
                                          -----------------------------------
                                               Mark Housley


Housley Letter Agreement                                                    4