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                                   RADIUS INC.

                             1995 STOCK OPTION PLAN

                          As Adopted December 20, 1995



     1.   PURPOSE.  The purpose of the Plan is to provide incentives to attract,
retain and motivate eligible persons whose present and potential contributions
are important to the success of the Company, its Parent, Subsidiaries and
Affiliates, by offering them an opportunity to participate in the Company's
future performance through awards of stock options.  Capitalized terms not
defined in the text are defined in Section 19.

     2.   SHARES SUBJECT TO THE PLAN.

          2.1  NUMBER  OF  SHARES  AVAILABLE.  Subject to Sections 2.2 and 14,
the total number of Shares reserved and available for grant and issuance
pursuant to Awards under the Plan shall be Shares, consisting of 850,000 shares,
plus the total number of shares authorized for issuance, but not issued or
subject to outstanding options, under the Company's 1986 Stock Option Plan (the
"Prior Plan") as of the date of shareholder approval of this Plan.  Any shares
issuable upon exercise of options granted pursuant to the Prior Plan that expire
or become unexercisable for any reason after the date of shareholder approval of
this Plan without having been exercised in full, shall no longer be available
for distribution under the Prior Plan, but shall be available for distribution
under this Plan.  Subject to Sections 2.2 and 14, Shares shall again be
available for grant and issuance in connection with future Awards under the Plan
if such Shares cease to be subject to an Award for any reason other than the
exercise of such Award.

          2.2  ADJUSTMENT OF SHARES.  In the event that the number of
outstanding Shares is changed by a stock dividend, recapitalization, stock
split, reverse stock split, subdivision, combination, reclassification or
similar change in the capital structure of the Company without consideration,
then (a) the number of Shares reserved for issuance under the Plan and (b) the
Exercise Prices of and number of Shares subject to outstanding Awards shall be
proportionately adjusted, subject to any required action by the Board or the
shareholders of the Company and compliance with applicable securities laws;
PROVIDED, HOWEVER, that fractions of a Share shall not be issued but shall
either be paid in cash at Fair Market Value or shall be rounded up to the
nearest Share, as determined by the Committee.

     3.   ELIGIBILITY.  ISOs (as defined in Section 5 below) may be granted only
to employees (including officers and directors who are also employees) of the
Company or of a Parent or Subsidiary of the Company.  NQSOs (as defined in
Section 5 below) may be granted to employees, officers, directors, consultants,
independent contractors and advisors of the Company or any Parent, Subsidiary or
Affiliate of the Company; PROVIDED such consultants, contractors and advisors
render bona fide services not in connection with the offer and sale of
securities in a capital-raising transaction.  A person may be granted more than
one Award under the Plan.  No "Named Executive Officer" (as that term is defined
in Item 402(a)(3) of Regulation S-K promulgated under the Exchange Act) shall be
eligible to receive more than 1,000,000 shares at any time during the term of
this Plan pursuant to the grant of Awards hereunder.

     4.   ADMINISTRATION.

          4.1  COMMITTEE  AUTHORITY.  The Plan shall be administered by the
Committee.  Subject to the general purposes, terms and conditions of the Plan,
the Committee shall have full power to implement and carry out the Plan.  The
Committee shall have the authority to:

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     (a)  construe and interpret the Plan, any Stock Option Agreement and any
          other agreement or document executed pursuant to the Plan;

     (b)  prescribe, amend and rescind rules and regulations relating to the
          Plan;

     (c)  select persons to receive Awards;

     (d)  determine the form and terms of Awards;

     (e)  determine the number of Shares subject to Awards;

     (f)  determine whether Awards will be granted in replacement of, or as
          alternatives to, other Awards under the Plan or any other incentive or
          compensation plan of the Company or any Parent, Subsidiary or
          Affiliate of the Company;

     (g)  grant waivers of Plan or Award conditions;

     (h)  determine the vesting and exercisability of Awards;

     (i)  correct any defect, supply any omission, or reconcile any
          inconsistency in the Plan, any Award or any Stock Option Agreement;

     (j)  determine the disposition of Awards in the event of a Participant's
          divorce or dissolution of marriage; and

     (k)  make all other determinations necessary or advisable for the
          administration of the Plan.

          4.2  COMMITTEE  DISCRETION.  Any determination made by the Committee
with respect to any Award shall be made in its sole discretion at the time of
grant of the Award or, unless in contravention of any express term of the Plan
or Award, at any later time, and such determination shall be final and binding
on the Company and all persons having an interest in any Award under the Plan.
The Committee may delegate to one or more officers of the Company the authority
to grant an Award under the Plan to Participants who are not Insiders of the
Company.

          4.3  EXCHANGE  ACT REQUIREMENTS.  If two or more members of the Board
are Outside Directors, the Committee shall be comprised of at least two members
of the Board, all of whom are Outside Directors and Disinterested Persons.  The
Company will take appropriate steps to comply with the disinterested director
requirements of Section 16(b) of the Exchange Act, including but not limited to,
the appointment by the Board of a Committee consisting of not less than two
persons (who are members of the Board), each of whom is a Disinterested Person.
It is the intent of the Company that the Plan and Awards hereunder satisfy and
be interpreted in a manner, that, in the case of Participants who are or may be
Insiders, satisfies the applicable requirements of Rule 16b-3 (or its successor)
of the Exchange Act.  If any provision of the Plan or of any Award would
otherwise conflict with the intent expressed in this Section 4.3, that provision
to the extent possible shall be interpreted and deemed amended so as to avoid
such conflict.

     5.   STOCK OPTIONS.  The Committee may grant Awards to eligible persons and
shall determine whether such Awards shall be Incentive Stock Options within the
meaning of the Code ("ISOs") or Nonqualified Stock Options ("NQSOs"), the number
of Shares subject to the Award, the Exercise Price of the Award, the period
during which the Award may be exercised, and all other terms and conditions of
the Award, subject to the following:

          5.1  FORM OF OPTION GRANT.  Each Award granted under the Plan shall be
evidenced by a Stock Option Agreement which shall expressly identify the Award
as an ISO or NQSO, and be in such form and

                                       -2-

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contain such provisions (which need not be the same for each Participant) as the
Committee shall from time to time approve, and which shall comply with and be
subject to the terms and conditions of the Plan.

          5.2  DATE OF GRANT.  The date of grant of an Award shall be the date
on which the Committee makes the determination to grant such Award, unless
otherwise specified by the Committee.  The Stock Option Agreement and a copy of
the Plan will be delivered to the Participant within a reasonable time after the
granting of the Award.

          5.3  EXERCISE PERIOD.  Awards shall be exercisable within the times or
upon the events determined by the Committee as set forth in the Stock Option
Agreement; PROVIDED, HOWEVER, that no Award shall be exercisable after the
expiration of ten (10) years from the date the Award is granted; and PROVIDED
FURTHER that no ISO granted to a person who directly or by attribution owns more
than ten percent (10%) of the total combined voting power of all classes of
stock of the Company or any Parent or Subsidiary of the Company ("TEN PERCENT
SHAREHOLDER") shall be exercisable after the expiration of five (5) years from
the date the Award is granted.  The Committee also may provide for Awards to
become exercisable at one time or from time to time, periodically or otherwise,
in such number or percentage as the Committee determines.

          5.4  EXERCISE PRICE.  The Exercise Price shall be determined by the
Committee when the Award is granted and shall be not less than 50% of the Fair
Market Value of the Shares on the date of grant; PROVIDED, that (i) the Exercise
Price of an ISO shall be not less than 100% of the Fair Market Value of the
Shares on the date of grant and (ii) the Exercise Price of any ISO granted to a
Ten Percent Shareholder shall not be less than 110% of the Fair Market Value of
the Shares on the date of grant.  Payment for the Shares purchased may be made
in accordance with Section 6 of the Plan.

          5.5  METHOD OF EXERCISE.  Awards may be exercised only by delivery to
the Company of a written exercise agreement (the "EXERCISE AGREEMENT") in a form
approved by the Committee (which need not be the same for each Participant),
stating the number of Shares being purchased, the restrictions imposed on the
Shares, if any, and such representations and agreements regarding Participant's
investment intent and access to information and other matters, if any, as may be
required or desirable by the Company to comply with applicable securities laws,
together with payment in full of the Exercise Price for the number of Shares
being purchased.

          5.6  TERMINATION.  Notwithstanding the exercise periods set forth in
the Stock Option Agreement, exercise of an Award shall always be subject to the
following:

     (a)  If the Participant is Terminated for any reason except death or
          Disability, then Participant may exercise such Participant's Awards
          only to the extent that such Awards would have been exercisable upon
          the Termination Date and for the period of time after the Termination
          Date that is specified by the Committee, not to exceed five years.  In
          the event that the Committee fails to specify such a time period, such
          Awards may be exercised no later than thirty (30) days after the
          Termination Date.  However, in no event may such Awards be exercised
          after the expiration date of the Awards.

     (b)  If the Participant is terminated because of death or Disability (or
          the Participant dies within the period of time that is specified by
          the Committee for the exercise of Participant's Awards following such
          termination or within Thirty (30) days of such termination if the
          Committee failed to otherwise specify the time period, as described in
          Section 5.6(a), above), then Participant's Awards may be exercised
          only to the extent that such Awards would have been exercisable by
          Participant on the Termination Date and must be exercised by
          Participant (or Participant's legal representative or authorized
          assignee) no later than twelve (12) months after the Termination Date
          in the case of disability or death (or such longer time period not
          exceeding five years as may be determined by the Committee), but in
          any event no later than the expiration date of the Awards.

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          5.7  LIMITATION ON EXERCISE.  The Committee may specify a reasonable
minimum number of Shares that may be purchased on any exercise of an Award;
PROVIDED that such minimum number will not prevent Participant from exercising
the Award for the full number of Shares for which it is then exercisable.

          5.8  LIMITATIONS ON ISOS.  The aggregate Fair Market Value (determined
as of the date of grant) of Shares with respect to which ISOs are exercisable
for the first time by a Participant during any calendar year (under the Plan or
under any other incentive stock option plan of the Company or any Affiliate,
Parent or Subsidiary of the Company) shall not exceed $100,000.  If the Fair
Market Value of Shares on the date of grant with respect to which ISOs are
exercisable for the first time by a Participant during any calendar year exceeds
$100,000, the Awards for the first $100,000 worth of Shares to become
exercisable in such calendar year shall be ISOs and the Awards for the amount in
excess of $100,000 that become exercisable in that calendar year shall be NQSOs.
In the event that the Code or the regulations promulgated thereunder are amended
after the Effective Date of the Plan to provide for a different limit on the
Fair Market Value of Shares permitted to be subject to ISOs, such different
limit shall be automatically incorporated herein and shall apply to any Awards
granted after the effective date of such amendment.

          5.9  MODIFICATION, EXTENSION OR RENEWAL.  The Committee may modify,
extend or renew outstanding Awards and authorize the grant of new Awards in
substitution therefor; PROVIDED that any such action may not, without the
written consent of Participant, impair any of Participant's rights under any
Award previously granted.  Any outstanding ISO that is modified, extended,
renewed or otherwise altered shall be treated in accordance with Section 424(h)
of the Code.  The Committee may reduce the Exercise Price of outstanding Awards
without the consent of Participants affected by a written notice to them;
PROVIDED, HOWEVER, that the Exercise Price may not be reduced below the minimum
Exercise Price that would be permitted under Section 5.4 of the Plan for Awards
granted on the date the action is taken to reduce the Exercise Price.

          5.10 NO DISQUALIFICATION.  Notwithstanding any other provision in the
Plan, no term of the Plan relating to ISOs shall be interpreted, amended or
altered, nor shall any discretion or authority granted under the Plan be
exercised, so as to disqualify the Plan under Section 422 of the Code or,
without the consent of the Participant affected, to disqualify any ISO under
Section 422 of the Code.

     6.   PAYMENT FOR SHARE PURCHASES.  Payment for Shares purchased pursuant to
the Plan may be made in cash (by check) or, where expressly approved for the
Participant by the Committee and where permitted by law:

     (a)  by cancellation if indebtedness of the Company to the Participant;

     (b)  by surrender of Shares that either:  (1) have been owned by
          Participant for more than six (6) months and have been paid for within
          the meaning of SEC Rule 144 (and, if such shares were purchased from
          the Company by use of a promissory note, such note has been fully paid
          with respect to such Shares); or (2) were obtained by Participant in
          the public market;

     (c)  by tender of a full recourse promissory note having such terms as may
          be approved by the Committee and bearing interest at a rate sufficient
          to avoid imputation of income under Section 483 and 1274 of the Code;
          PROVIDED, HOWEVER, that Participants who are not employees of the
          Company shall not be entitled to purchase Shares with a promissory
          note unless the note is adequately secured by collateral other than
          the Shares; PROVIDED, FURTHER, that the portion of the Purchase Price
          equal to the par value of the Shares, if any, must be paid in cash.

     (d)  by waiver of compensation due or accrued to Participant for services
          rendered;

     (e)  by tender of property;

     (f)  provided that a public market for the Company's stock exists:

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          (1)  through a "same day sale" commitment from Participant and a
               broker-dealer that is a member of the National Association of
               Securities Dealers (a "NASD DEALER") whereby the Participant
               irrevocably elects to exercise the Award and to sell a portion of
               the Shares so purchased in order to pay for the Exercise Price,
               and whereby the NASD Dealer irrevocably commits upon receipt of
               such Shares to forward the Exercise Price directly to the
               Company; or

          (2)  through a "margin" commitment from Participant and a NASD Dealer
               whereby Participant irrevocably elects to exercise the Award and
               to pledge the Shares so purchased to the NASD Dealer in a margin
               account as security for a loan from the NASD Dealer in the amount
               of the Exercise Price, and whereby the NASD Dealer irrevocably
               commits upon receipt of such Shares to forward the exercise price
               directly to the Company; or

     (g)  by any combination of the foregoing.

     7.   WITHHOLDING TAXES.

          7.1  WITHHOLDING GENERALLY.  Whenever Shares are to be issued in
satisfaction of Awards granted under the Plan, the Company may require the
Participant to remit to the Company an amount sufficient to satisfy federal,
state and local withholding tax requirements prior to the delivery of any
certificate or certificates for such Shares.  Whenever, under the Plan, payments
in satisfaction of Awards are to be made in cash, such payment shall be net of
an amount sufficient to satisfy federal, state, and local withholding tax
requirements.

          7.2  STOCK WITHHOLDING.  When, under applicable tax laws, a
Participant incurs tax liability in connection with the exercise of any Award
that is subject to tax withholding and the Participant is obligated to pay the
Company the amount required to be withheld, the Committee may allow the
Participant to satisfy the minimum withholding tax obligation by electing to
have the Company withhold from the Shares to be issued that number of Shares
having a Fair Market Value equal to the minimum amount required to be withheld,
determined on the date that the amount of tax to be withheld is to be determined
(the "TAX DATE").  All elections by a Participant to have Shares withheld for
this purpose shall be made in writing in a form acceptable to the Committee and
shall be subject to the following restrictions:

     (a)  the election must be made on or prior to the applicable Tax Date;

     (b)  once made, then except as provided below, the election shall be
          irrevocable as to the particular Shares as to which the election
          is made;

     (c)  all elections shall be subject to the consent or disapproval of the
          Committee;

     (d)  if the Participant is an Insider and if the Company is subject to
          Section 16(b) of the Exchange Act:  (1) the election may not be made
          within six (6) months of the date of grant of the Award, except as
          otherwise permitted by SEC Rule 16b-3(e) under the Exchange Act, and
          (2) either (A) the election to use stock withholding must be
          irrevocably made at least six (6) months prior to the Tax Date
          (although such election may be revoked at any time at least six (6)
          months prior to the Tax Date) or (B) the exercise of the Award or
          election to use stock withholding must be made in the ten (10) day
          period beginning on the third day following the release of the
          Company's quarterly or annual summary statement of sales or earnings;
          and

     (e)  in the event that the Tax Date is deferred until six (6) months after
          the delivery of Shares under Section 83(b) of the Code, the
          Participant shall receive the full number of Shares

                                       -5-

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          with respect to which the exercise occurs, but such Participant shall
          be unconditionally obligated to tender back to the Company the proper
          number of Shares on the Tax Date.

     8.   PRIVILEGES OF STOCK OWNERSHIP.

          8.1  VOTING AND DIVIDENDS.  No Participant shall have any of the
rights of a shareholder with respect to any Shares until the Shares are issued
to the Participant.  After Shares are issued to the Participant, the Participant
shall be a shareholder and have all the rights of a shareholder with respect to
such Shares, including the right to vote and receive all dividends or other
distributions made or paid with respect to such Shares.

          8.2  FINANCIAL STATEMENTS.  The Company shall provide financial
statements to each Participant annually during the period such Participant has
Awards outstanding; PROVIDED, HOWEVER, the Company shall not be required to
provide such financial statements to Participants whose services in connection
with the Company assure them access to equivalent information.

     9.   TRANSFERABILITY.  Subject to Section 4.1(j), Awards granted under the
Plan, and any interest therein, shall not: (a) be transferable or assignable by
the Participant, (b) be made subject to execution, attachment or similar
process, otherwise than by will or by the laws of descent and distribution or as
consistent with the specific Plan and Stock Option Agreement provisions relating
thereto or (c) during the lifetime of the Participant, be exercisable by anyone
other than the Participant, and any elections with respect to an Award, may be
made only by the Participant.

     10.  CERTIFICATES.  All certificates for Shares or other securities
delivered under the Plan shall be subject to such stock transfer orders, legends
and other restrictions as the Committee may deem necessary or advisable,
including restrictions under any applicable federal, state or foreign securities
law, or any rules, regulations and other requirements of the SEC or any stock
exchange or automated quotation system upon which the Shares may be listed.

     11.  SECURITIES LAW AND OTHER REGULATORY COMPLIANCE.  An Award shall not be
effective unless such Award is in compliance with all applicable federal and
state securities laws, rules and regulations of any governmental body, and the
requirements of any stock exchange or automated quotation system upon which the
Shares may then be listed, as they are in effect on the date of grant of the
Award and also on the date of exercise or other issuance.  Notwithstanding any
other provision in the Plan, the Company shall have no obligation to issue or
deliver certificates for Shares under the Plan prior to (a) obtaining any
approvals from governmental agencies that the Company determines are necessary
or advisable, and/or (b) completion of any registration or other qualification
of such shares under any state or federal law or ruling of any governmental body
that the Company determines to be necessary or advisable.  The Company shall be
under no obligation to register the Shares with the SEC or to effect compliance
with the registration, qualification or listing requirements of any state
securities laws, stock exchange or automated quotation system, and the Company
shall have no liability for any inability or failure to do so.

     12.  NO OBLIGATION TO EMPLOY.  Nothing in the Plan or any Award granted
under the Plan shall confer or be deemed to confer on any Participant any right
to continue in the employ of, or to continue any other relationship with, the
Company or any Parent, Subsidiary or Affiliate of the Company or limit in any
way the right of the Company or any Parent, Subsidiary or Affiliate of the
Company to terminate Participant's employment or other relationship at any time,
with or without cause.

     13.  EXCHANGE AND BUYOUT OF AWARDS.  The Committee may, at any time or from
time to time, authorize the Company, with the consent of the respective
Participants, to issue new Awards in exchange for the surrender and cancellation
of any or all outstanding Awards.  The Committee may at any time buy from a
Participant an Award previously granted with payment in cash, Shares or other
consideration, based on such terms and conditions as the Committee and the
Participant shall agree.

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     14.  CORPORATE TRANSACTIONS.

          14.1 ASSUMPTION OR REPLACEMENT OF AWARDS BY SUCCESSOR.  In the event
of (a) a merger or consolidation in which the Company is not the surviving
corporation (other than a merger or consolidation with a wholly-owned
subsidiary, a reincorporation of the Company in a different jurisdiction, or
other transaction in which there is no substantial change in the shareholders of
the Company and the Awards granted under the Plan are assumed or replaced by the
successor corporation, which assumption shall be binding on all Participants),
(b) a dissolution or liquidation of the Company, (c) the sale of substantially
all of the assets of the Company, or (d) any other transaction which qualifies
as a "corporate transaction" under Section 424(a) of the Code wherein the
shareholders of the Company give up all of their equity interest in the Company
(EXCEPT for the acquisition, sale or transfer of all or substantially all of the
outstanding shares of the Company), any or all outstanding Awards may be assumed
or replaced by the successor corporation (if any), which assumption or
replacement shall be binding on all Participants.  In the alternative, the
successor corporation may substitute equivalent Awards or provide substantially
similar consideration to Participants as was provided to shareholders (after
taking into account the existing provisions of the Awards).  The successor
corporation may also issue, in place of outstanding Shares of the Company held
by the Participant, substantially similar shares or other property subject to
repurchase restrictions no less favorable to the Participant.

          In the event such successor corporation (if any) refuses to assume or
substitute Options, as provided above, pursuant to a transaction described in
this Subsection 14.1, such Options shall accelerate and become exercisable in
full at least ten days prior to and shall expire on the consummation of such
event at such times and on such conditions as the Board shall determine.

          14.2 OTHER TREATMENT OF AWARDS.  Subject to any greater rights granted
to Participants under the foregoing provisions of this Section 14, in the event
of the occurrence of any transaction described in Section 14.1, any outstanding
Awards shall be treated as provided in the applicable agreement or plan of
merger, consolidation, dissolution, liquidation, sale of assets or other
"corporate transaction."

          14.3 ASSUMPTION OF AWARDS BY THE COMPANY.  The Company, from time to
time, also may substitute or assume outstanding awards granted by another
company, whether in connection with an acquisition of such other company or
otherwise, by either (a) granting an Award under the Plan in substitution of
such other company's award, or (b) assuming such award as if it had been granted
under the Plan if the terms of such assumed award could be applied to an Award
granted under the Plan.  Such substitution or assumption shall be permissible if
the holder of the substituted or assumed award would have been eligible to be
granted an Award under the Plan if the other company had applied the rules of
the Plan to such grant.  In the event the Company assumes an award granted by
another company, the terms and conditions of such award shall remain unchanged
(EXCEPT that the exercise price and the number and nature of Shares issuable
upon exercise of any such option will be adjusted appropriately pursuant to
Section 424(a) of the Code).  In the event the Company elects to grant a new
Option rather than assuming an existing option, such new Option may be granted
with a similarly adjusted Exercise Price.

     15.  ADOPTION AND SHAREHOLDER APPROVAL.  The Plan shall become effective on
the date that it is adopted by the Board (the "EFFECTIVE DATE").  The Plan shall
be approved by the shareholders of the Company (excluding Shares issued pursuant
to this Plan), consistent with applicable laws, within twelve months before or
after the Effective Date.  Upon the Effective Date, the Board may grant Awards
pursuant to the Plan; PROVIDED, HOWEVER, that: (a) no Award may be exercised
prior to initial shareholder approval of the Plan; and (b) no Award granted
pursuant to an increase in the number of Shares approved by the Board shall be
exercised prior to the time such increase has been approved by the shareholders
of the Company.  For so long as and whenever the Company is subject to Section
16(b) of the Exchange Act, the Company will comply with the requirements of Rule
16b-3 (or its successor), as amended, with respect to shareholder approval.

     16.  TERM OF PLAN.  The Plan will terminate ten (10) years from the
Effective Date or, if earlier, the date of shareholder approval.

                                       -7-

<PAGE>

     17.  AMENDMENT OR TERMINATION OF PLAN.  The Board may at any time terminate
or amend the Plan in any respect, including without limitation amendment of any
form of Stock Option Agreement or instrument to be executed pursuant to the
Plan; PROVIDED, HOWEVER, that the Board shall not, without the approval of the
shareholders of the Company, amend the Plan in any manner that requires such
shareholder approval pursuant to the Code or the regulations promulgated
thereunder as such provisions apply to ISO plans or pursuant to the Exchange Act
or Rule 16b-3 (or its successor), as amended, thereunder; PROVIDED, FURTHER,
that no amendment may be made to outstanding Awards without the consent of the
Participant.

     18.  NONEXCLUSIVITY OF THE PLAN.  Neither the adoption of the Plan by the
Board, the submission of the Plan to the shareholders of the Company for
approval, nor any provision of the Plan shall be construed as creating any
limitations on the power of the Board to adopt such additional compensation
arrangements as it may deem desirable, including, without limitation, the
granting of stock options otherwise than under the Plan, and such arrangements
may be either generally applicable or applicable only in specific cases.

     19.  DEFINITIONS.  As used in the Plan, the following terms shall have the
following meanings:

          "AFFILIATE" means any corporation that directly, or indirectly through
one or more intermediaries, controls or is controlled by, or is under common
control with the Company where "control" (including the terms "controlled by"
and "under common control with") means the possession, direct or indirect, of
the power to cause the direction of the management and policies of the
corporation, whether through the ownership of voting securities, by contract or
otherwise.

          "AWARD" means an award of an option to purchase Shares.

          "STOCK OPTION AGREEMENT" means, with respect to each Award, the signed
written agreement between the Company and the Participant setting forth the
terms and conditions of the Award.

          "BOARD" means the Board of Directors of the Company.

          "CODE" means the Internal Revenue Code of 1986, as amended.

          "COMMITTEE" means the committee appointed by the Board to administer
the Plan, or if no committee is appointed, the Board.

          "COMPANY" means Radius Inc., a corporation organized under the laws of
the State of California, or any successor corporation.

          "DISABILITY" means a disability, whether temporary or permanent,
partial or total, within the meaning of Section 22(e)(3) of the Code, as
determined by the Committee.

          "DISINTERESTED PERSON" means a director who has not, during the period
that person is a member of the Committee and for one year prior to service as a
member of the Committee, been granted or awarded equity securities pursuant to
the Plan or any other plan of the Company or any Parent, Subsidiary or Affiliate
of the Company, except in accordance with the requirements set forth in Rules as
promulgated by the SEC under Section 16(b) of the Exchange Act, as such Rules
are amended from time to time and as interpreted by the SEC.

          "EXCHANGE ACT" means the Securities Exchange Act of 1934, as amended.

          "EXERCISE PRICE" means the price at which a holder of an Award may
purchase the Shares issuable upon exercise of the Award.

          "FAIR MARKET VALUE" means the value of a share of the Company's Common
Stock determined as follows:

                                       -8-

<PAGE>

     (a)  if such Common Stock is then quoted on the Nasdaq National Market the
          closing price on the Nasdaq National Market System, or, if no such
          reported sale takes place on such date, the closing price on the next
          preceding trading date on which a reported sale occurred;

     (b)  if such Common Stock is publicly traded and is then listed on a
          national securities exchange, the closing price or, if no reported
          sale takes place on such date, the closing price on the next preceding
          trading day on which a reported sale occurred;

     (c)  if such Common Stock is publicly traded but is not quoted on the
          Nasdaq National Market nor listed or admitted to trading on a national
          securities exchange, the average of the closing bid and asked prices
          on such date, as reported by THE WALL STREET JOURNAL, for the over-
          the-counter market; or

     (d)  if none of the foregoing is applicable, by the Board in good faith.

          "INSIDER" means an officer or director of the Company or any other
person whose transactions in the Company's Common Stock are subject to Section
16 of the Exchange Act.

          "OUTSIDE DIRECTOR" means any outside director as defined in Section
162(m) of the Code and the regulations issued thereunder.

          "PARENT" means any corporation (other than the Company) in an unbroken
chain of corporations ending with the Company, if at the time of the granting of
an Award under the Plan, each of such corporations other than the Company owns
stock possessing 50% or more of the total combined voting power of all classes
of stock in one of the other corporations in such chain.

          "PARTICIPANT" means a person who receives an Award under the Plan.

          "PLAN" means this Radius Inc. 1995 Stock Option Plan, as amended from
time-to-time.

          "SEC" means the Securities and Exchange Commission.

          "SECURITIES ACT" means the Securities Act of 1933, as amended.

          "SHARES" means shares of the Company's Common Stock, no par value,
reserved for issuance under the Plan, as adjusted pursuant to Sections 2 and 14,
and any successor security.

          "SUBSIDIARY" means any corporation (other than the Company) in an
unbroken chain of corporations beginning with the Company if, at the time of
granting of the Award, each of the corporations other than the last corporation
in the unbroken chain owns stock possessing 50% or more of the total combined
voting power of all classes of stock in one of the other corporations in such
chain.

          "TERMINATION" or "TERMINATED" means, for purposes of the Plan with
respect to a Participant, that the Participant has ceased to provide services as
an employee, director, consultant, independent contractor or adviser, to the
Company or a Parent, Subsidiary or Affiliate of the Company, except in the case
of sick leave, military leave, or any other leave of absence approved by the
Committee; PROVIDED, that such leave is for a period of not more than ninety
(90) days, or reinstatement upon the expiration of such leave is guaranteed by
contract or statute.  The Committee shall have sole discretion to determine
whether a Participant has ceased to provide services and the effective date on
which the Participant ceased to provide services (the "TERMINATION DATE").

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