CISCO SYSTEMS INC
8-A12G, 1998-06-11
COMPUTER COMMUNICATIONS EQUIPMENT
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<PAGE>   1
                       SECURITIES AND EXCHANGE COMMISSION

                             Washington, D.C. 20549

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


                                    FORM 8-A



                FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES
                     PURSUANT TO SECTION 12(b) OR (g) OF THE
                         SECURITIES EXCHANGE ACT OF 1934



                               CISCO SYSTEMS, INC.
- --------------------------------------------------------------------------------
               (Exact name of registrant as specified in charter)


       CALIFORNIA                  000-18225                77-0059951
- --------------------------------------------------------------------------------
(State of incorporation           (Commission             (IRS Employer
    or organization)              File Number)          Identification No.)

             170 WEST TASMAN DRIVE, SAN JOSE, CALIFORNIA 95134-1706
- --------------------------------------------------------------------------------
                    (Address of principal executive offices)


Registrant's telephone number, including area code        (408) 526-4000
                                                  ------------------------------

Securities to be registered pursuant to Section 12(b) of the Act:

                                      NONE
- --------------------------------------------------------------------------------
                                (Title of Class)


SECURITIES TO BE REGISTERED PURSUANT TO SECTION 12(g) OF THE ACT:


                         PREFERRED STOCK PURCHASE RIGHTS
- --------------------------------------------------------------------------------
                                (Title of Class)





<PAGE>   2
Item 5.  Other Events.

               On June 10, 1998, the Board of Directors of Cisco Systems, Inc.
(the "Company") declared a dividend of one preferred share purchase right (a
"Right") for each outstanding share of Common Stock (the "Common Stock"), par
value $.001 per share, of the Company. The dividend is payable on June 22, 1998
(the "Record Date") to the shareholders of record on that date. Each Right
entitles the registered holder to purchase from the Company one ten-thousandth
of a share (a "Unit") of Series A Junior Participating Preferred Stock, no par
value (the "Series A Preferred Stock"), of the Company at a price of $650.00 per
Unit (the "Purchase Price"), subject to adjustment. The description and terms of
the Rights are set forth in a Rights Agreement dated as of June 10, 1998 (the
"Rights Agreement") between the Company and Bank Boston, N.A., as Rights Agent
(the "Rights Agent").

               Until the earlier to occur of (i) the close of business on the
first date of a public announcement that a person or group of affiliated or
associated persons (an "Acquiring Person") have acquired beneficial ownership of
15% or more of the outstanding Common Stock or (ii) 10 business days (or such
later date as may be determined by action of the Continuing Directors prior to
such time as any Person becomes an Acquiring Person) following the commencement
of, or announcement of an intention to make, a tender offer or exchange offer
the consummation of which would result in the beneficial ownership by a person
or group of 15% or more of such outstanding Common Stock (the earlier of such
dates being called the "Distribution Date"), the Rights will be evidenced, with
respect to any of the Common Stock certificates outstanding as of the Record
Date, by such Common Stock certificate with a copy of this Summary of Rights
attached thereto.

               The Rights Agreement provides that, until the Distribution Date,
the Rights will be transferred with and only with the Common Stock. Until the
Distribution Date (or earlier redemption or expiration of the Rights), new
Common Stock certificates issued after the Record Date, upon transfer or new
issuance of Common Stock will contain a notation incorporating the Rights
Agreement by reference. Until the Distribution Date (or earlier redemption or
expiration of the Rights), the surrender for transfer of any certificates for
Common Stock, outstanding as of the Record Date, even without such notation or a
copy of this Summary of Rights being attached thereto, will also constitute the
transfer of the Rights associated with the Common Stock represented by such
certificate. As soon as practicable following the Distribution Date, separate
certificates evidencing the Rights ("Rights Certificates") will be mailed to
holders of record of the Common Stock as of the Close of Business on the
Distribution Date and such separate Rights Certificates alone will evidence the
Rights.

               The Rights are not exercisable until the Distribution Date. The
Rights will expire at the close of business on June 10, 2008 (the "Final
Expiration Date"), unless the Final Expiration Date is extended or unless the
Rights are earlier redeemed or exchanged by the Company, in each case as
described below.

               The Purchase Price payable, and the number of Units of Series A
Preferred Stock or other securities or property issuable, upon exercise of the
Rights are subject to adjustment from time to time to prevent dilution (i) in
the event of a stock dividend on, or a subdivision, combination or
reclassification of, the Series A Preferred Stock, (ii) upon the grant to
holders of the Units of Series A Preferred Stock of certain rights or warrants
to subscribe for or purchase Units of Series A Preferred Stock at a price, or
securities convertible into Units of Series A Preferred Stock with a conversion
price, less than the then current market price of the Units of Series A
Preferred Stock or (iii) upon the distribution to holders of the Units of Series
A Preferred Stock of evidences of indebtedness or assets (excluding regular
periodic cash dividends paid out of earnings or retained earnings or dividends
payable in Units of Series A Preferred Stock) or of subscription rights or
warrants (other than those referred to above).

               The number of outstanding Rights and the number of Units of
Series A Preferred Stock issuable upon exercise of each Rights are also subject
to adjustment in the event of a stock split of the Common Stock or a stock
dividend on the Common Stock payable in Common Stock or subdivisions,
consolidations or combinations of the Common Stock occurring, in any such case,
prior to the Distribution Date.


                                       1.

<PAGE>   3
               Units of Series A Preferred Stock purchasable upon exercise of
the Rights will not be redeemable. Each Unit of Series A Preferred Stock will be
entitled to an aggregate dividend of 10,000 times the dividend declared per
share of Common Stock. In the event of liquidation, the holders of the Units of
Series A Preferred Stock will be entitled to an aggregate payment of 10,000
times the payment made per share of Common Stock. Each Unit of Series A
Preferred Stock will have 10,000 votes, voting together with the Common Stock.
Finally, in the event of any merger, consolidation or other transaction in which
shares of Common Stock are exchanged, each Unit of Series A Preferred Stock will
be entitled to receive 10,000 times the amount received per share of Common
Stock. These rights are protected by customary antidilution provisions.

               Because of the nature of the dividend, liquidation and voting
rights, the value of the Series A Preferred Stock, the Units of Series A
Preferred Stock purchasable upon exercise of each Rights should approximate the
value of one share of Common Stock.

               In the event that, after the Rights become exercisable, the
Company is acquired in a merger or other business combination transaction with
an Acquiring Person or an affiliate thereof, or 50% or more of its consolidated
assets or earning power are sold to an Acquiring Person or an affiliate thereof,
proper provision will be made so that each holder of a Rights will thereafter
have the right to receive, upon exercise thereof at the then current exercise
price of the Rights, that number of shares of common stock of the acquiring
company which at the time of such transaction will have a market value of two
times the exercise price of the Rights.

               In the event that any person or group of affiliated or associated
persons becomes the beneficial owner of 15% or more of the outstanding shares of
Common Stock proper provision shall be made so that each holder of a Right,
other than Rights beneficially owned by the Acquiring Person (which will
thereafter be void), will thereafter have the right to receive upon exercise
that number of shares of Common Stock or Units of Series A Preferred Stock (or
cash, other securities or property) having a market value of two times the
exercise price of the Rights.

               At any time after the acquisition by a person or group of
affiliated or associated persons of beneficial ownership of 15% or more of the
outstanding shares of Common Stock and prior to the acquisition by such person
or group of 50% or more of the outstanding Common Stock, the Continuing
Directors of the Company may exchange the Rights (other than Rights owned by
such person or group which have become void), in whole or in part, at an
exchange ratio of one Unit of Series A Preferred Stock (subject to adjustment)
which shall equal, subject to adjustment to reflect stock splits, stock
dividends and similar transactions occurring after the date hereof, that number
obtained by dividing the Purchase Price by the then current per share market
price per Unit of Series A Preferred Stock on the earlier of (i) the date on
which any Person becomes an Acquiring Person and (ii) the date on which a tender
or exchange offer is announced by any Person, if upon consummation thereof such
Person would be the Beneficial Owner of 15% or more of the shares of Company
Common Stock then outstanding.

               With certain exceptions, no adjustment in the Purchase Price will
be required until cumulative adjustments require an adjustment of at least 1% in
such Purchase Price. No fractional shares of Series A Preferred Stock will be
issued (other than fractions which are integral multiples of one one-thousandth
of a share of Series A Preferred Stock, which may, at the election of the
Company, be evidenced by depositary receipts) and, in lieu thereof, an
adjustment in cash will be made based on the market price of the Units of Series
A Preferred Stock on the last trading day prior to the date of exercise.

               At any time on or prior to the close of business on the first
date of a public announcement that a person or group of affiliated or associated
persons acquire beneficial ownership of 15% or more of the outstanding Common
Stock (unless the Continuing Directors extends such ten-day period), the Board
of Directors of the Company may redeem the Rights in whole, but not in part, at
a price of $.001 per Right (the "Redemption Price"), upon the approval of a
majority of the Continuing Directors. The redemption of the rights may be made
effective at such time on such basis and with such conditions as the Directors,
upon the approval of the Continuing Directors in its sole discretion may
establish. Immediately upon any redemption of the Rights, the

                                             2.

<PAGE>   4
right to exercise the Rights will terminate and the only right of the holders of
Rights will be to receive the Redemption Price. The Rights are also redeemable
under other circumstances as specified in the Rights Agreement.

               The terms of the Rights may be amended by the Board of Directors
of the Company without the consent of the holders of the Rights upon the
approval of a majority of the Continuing Directors except that from and after a
Distribution Date no such amendment may adversely affect the interests of the
holders of the Rights.

               Until a Right is exercised, the holder thereof, as such, will
have no rights as a shareholder of the Company, including, without limitation,
the right to vote or to receive dividends.

               The Rights have certain anti-takeover effects. The Rights will
cause substantial dilution to a person or group that attempts to acquire the
Company on terms not approved by the Company's Board of Directors, except
pursuant to an offer conditioned on a substantial number of Rights being
acquired. The Rights should not interfere with any merger or other business
combination approved by the Board of Directors since the Rights may be redeemed
by the Company at the Redemption Price prior to the occurrence of a Distribution
Date.

               The Rights Agreement, dated as of June 10, 1998, between the
Company and the Rights Agent, specifying the terms of the Rights, is attached
hereto as an exhibit and is incorporated herein by reference. The foregoing
description of the Rights is qualified in its entirety by reference to such
exhibit.


Item 2. Exhibits.



1.      Rights Agreement, dated as of June 10, 1998, between the Company and
        Bank Boston, N.A., which includes the form of Certificate of
        Determination for the Series A Junior Participating Preferred Stock as
        Exhibit A, the form of Rights Certificate as Exhibit B and the Summary
        of Rights to Purchase Series A Preferred Stock as Exhibit C. Pursuant to
        the Rights Agreement, printed Right Certificates will not be mailed
        until as soon as practicable after the earlier of (i) the close of
        business on the first date of a public announcement that a person or
        group has acquired beneficial ownership of 15% or more of the shares of
        Common Stock or (ii) the tenth (10th) business day (or such later date
        as may be determined by action of the Board of Directors) after a person
        commences, or announces its intention to commence, a tender offer or
        exchange offer the consummation of which would result in the beneficial
        ownership by a person or group of 15% or more of the shares of Common
        Stock.


                                       3.


<PAGE>   5
                                    SIGNATURE

     Pursuant to the requirements of Section 12 of the Securities Exchange Act
of 1934, the registrant has duly caused this registration statement to be signed
on its behalf by the undersigned, thereto duly authorized.



                                            CISCO SYSTEMS, INC.



DATE:  June 10, 1998                        By: /s/ JOHN T. CHAMBERS
                                               ---------------------------------
                                               Name:  John T. Chambers
                                               Title: President and 
                                                      Chief Executive Officer
 

                                       4.

<PAGE>   6
                                  EXHIBIT INDEX


<TABLE>
<CAPTION>
EXHIBIT
NUMBER                       DOCUMENT DESCRIPTION
- ------                       --------------------

<S>     <C>
1.      Rights Agreement, dated as of June 10, 1998, between the Company and
        Bank Boston, N.A., which includes the form of Certificate of
        Determination for the Series A Junior Participating Preferred Stock as
        Exhibit A, the form of Rights Certificate as Exhibit B and the Summary
        of Rights to Purchase Preferred Stock as Exhibit C. Pursuant to the
        Rights Agreement, printed Right Certificates will not be mailed until as
        soon as practicable after the earlier of (i) the close of business on
        the first date of a public announcement that a person or group has
        acquired beneficial ownership of 15% or more of the shares of Common
        Stock or (ii) the tenth (10th) business day (or such later date as may
        be determined by action of the Board of Directors) after a person
        commences, or announces its intention to commence, a tender offer or
        exchange offer the consummation of which would result in the beneficial
        ownership by a person or group of 15% or more of the shares of Common
        Stock.
</TABLE>


<PAGE>   1
                                                                       Exhibit 1


                               CISCO SYSTEMS, INC.


                                       AND


                                BANK BOSTON, N.A.


                                 (RIGHTS AGENT)


                                RIGHTS AGREEMENT


                            DATED AS OF JUNE 10, 1998


<PAGE>   2
                                TABLE OF CONTENTS

                                                                           Page
                                                                           ----


Section 1.    Certain Definitions...........................................  1

Section 2.    Appointment of Rights Agent...................................  5

Section 3.    Issue of Rights Certificate...................................  6

Section 4.    Form of Rights Certificate....................................  7

Section 5.    Countersignature and Registration.............................  8

Section 6.    Transfer, Split-Up, Combination and Exchange of Rights 
              Certificate; Mutilated, Destroyed, Lost or Stolen Rights 
              Certificate...................................................  9

Section 7.    Exercise of Rights; Purchase Price; Expiration Date of 
              Rights........................................................  9

Section 8.    Cancellation and Destruction of Rights Certificate............ 11

Section 9.    Reservation and Availability of Preferred Stock............... 12

Section 10.   Preferred Stock Record Date................................... 13

Section 11.   Adjustment of Purchase Price, Number of Shares or Number 
              of Rights..................................................... 13

Section 12.   Articles of Adjusted Purchase Price or Number of Shares....... 22

Section 13.   Consolidation, Merger or Sale or Transfer of Assets or 
              Earning Power................................................. 22

Section 14.   Fractional Rights and Fractional Shares....................... 25

Section 15.   Rights of Action.............................................. 26

Section 16.   Agreement of Rights Holders................................... 26

Section 17.   Rights Certificate Holder Not Deemed a Shareholder............ 27

Section 18.   Concerning the Rights Agent................................... 27

Section 19.   Merger or Consolidation or Change of Name of Rights Agent..... 28

Section 20.   Duties of Rights Agent........................................ 28


                                       i.
<PAGE>   3
Section 21.   Change of Rights Agent........................................ 30

Section 22.   Issuance of New Rights Certificate............................ 31

Section 23.   Redemption and Termination.................................... 32

Section 24.   Exchange...................................................... 33

Section 25.   Notice of Certain Events...................................... 34

Section 26.   Notices....................................................... 35

Section 27.   Supplements and Amendments.................................... 36

Section 28.   Successors.................................................... 36

Section 29.   Determinations and Actions by the Board of Directors.......... 36

Section 30.   Benefits of This Agreement.................................... 37

Section 31.   Severability.................................................. 37

Section 32.   Governing Law................................................. 37

Section 33.   Counterparts.................................................. 37

Section 34.   Descriptive Headings.......................................... 37


EXHIBITS

Exhibit A - Form of Certificate of Determination of Series A Junior
            Participating Preferred Stock

Exhibit B - Form of Rights Certificate

Exhibit C - Summary of Rights to Purchase Shares of Series A Junior
            Participating Preferred Stock


                                       ii.
<PAGE>   4
                                RIGHTS AGREEMENT


            RIGHTS AGREEMENT, dated as of June 10, 1998, between Cisco Systems,
Inc., a California corporation (the "Company"), and Bank Boston N.A., a national
banking association (the "Rights Agent").

            WHEREAS, effective June 10, 1998 (the "Rights Dividend Declaration
Date"), the Board of Directors authorized and declared a distribution of one
Right (each, a "Right") for each share of Common Stock (as hereinafter defined)
of the Company outstanding as of the Close of Business (as hereinafter defined)
on June 22, 1998 (the "Record Date"), each Right initially representing the
right to purchase one ten-thousandth of a share (a "Unit") of Preferred Stock
(as hereinafter defined) upon the terms and subject to the conditions herein set
forth, and has further authorized and directed the issuance of one Right with
respect to each share of Common Stock that shall become outstanding between the
Record Date and the earliest of the Distribution Date, the Redemption Date or
the Final Expiration Date (as such terms are hereinafter defined).

            NOW, THEREFORE, in consideration of the premises and the mutual
agreements herein set forth, the parties hereby agree as follows:

            Section 1. Certain Definitions. For purposes of this Agreement, the
following terms have the meanings indicated:

            "Acquiring Person" shall mean any Person (as such term is
hereinafter defined) who or which, together with all Affiliates and Associates
(as such terms are hereinafter defined) of such Person, shall be the Beneficial
Owner (as such term is hereinafter defined) of 15% or more of the shares of
Common Stock of the Company then outstanding, but shall not include the Company,
any Subsidiary (as such term is hereinafter defined) of the Company, any
employee benefit plan of the Company or any Subsidiary of the Company, or any
entity holding shares of Common Stock for or pursuant to the terms of any such
plan. Notwithstanding the foregoing:

            (i)   no Person shall become an "Acquiring Person" as the result of
      an acquisition of shares of Common Stock by the Company which, by reducing
      the number of shares outstanding, increases the proportionate number of
      shares beneficially owned by such Person to 15% or more of the shares of
      Common Stock of the Company then outstanding; provided, however, that if a
      Person shall become the Beneficial Owner of 15% or more of the shares of
      Common Stock of the Company then outstanding by reason of share purchases
      by the Company and shall, after such share purchases by the Company,
      become the Beneficial Owner of any additional shares of Common Stock of
      the Company (or, in the case of the members of the Investor Group, become
      the Beneficial Owner of any additional shares of Common Stock of the
      Company), then such Person shall be deemed to be an "Acquiring Person"
      hereunder; and


                                       1.
<PAGE>   5
            (ii)  if the Board of Directors of the Company determines (upon
      approval by a majority of the Continuing Directors (as such term is
      hereinafter defined)) in good faith that a Person who would otherwise be
      an "Acquiring Person" as defined pursuant to the foregoing provisions of
      this paragraph (a), has become such inadvertently, and such Person divests
      as promptly as practicable a sufficient number of shares of Common Stock
      so that such Person would no longer be an "Acquiring Person" (as defined
      pursuant to the foregoing provisions of this paragraph (a)), then such
      Person shall not be deemed to be an "Acquiring Person" for any purpose of
      this Agreement.

            "Adjustment Shares" has the meaning set forth in Section 11(a)(ii).

            "Affiliate" and "Associate" shall have the respective meanings
ascribed to such terms in Rule 12b-2 of the General Rules and Regulations under
the Exchange Act (as such term is hereinafter defined).

            A Person shall be deemed the "Beneficial Owner" of, and shall be
deemed to "beneficially own," any securities:

            (i)   which such Person or any of such Person's Affiliates or
      Associates beneficially owns, directly or indirectly, for purposes of
      Section 13(d) of the Exchange Act and Rule 13d-3 thereunder (or any
      comparable or successor law or regulation); or

            (ii)  which such Person or any of such Person's Affiliates or
      Associates, directly or indirectly, has (A) the right to acquire (whether
      such right is exercisable immediately or only after the passage of time)
      pursuant to any agreement, arrangement or understanding (whether or not in
      writing, other than customary agreements with and between underwriters and
      selling group members with respect to a bona fide public offering of
      securities), or upon the exercise of conversion rights, exchange rights,
      rights (other than the Rights), warrants or options, or otherwise;
      provided, however, that a Person shall not be deemed the Beneficial Owner
      of, or to beneficially own, securities tendered pursuant to a tender or
      exchange offer made by or on behalf of such Person or any of such Person's
      Affiliates or Associates until such tendered securities are accepted for
      purchase or exchange; or (B) the right to vote pursuant to any agreement,
      arrangement or understanding; provided further, however, that a Person
      shall not be deemed the "Beneficial Owner" of, or to "beneficially own,"
      any security under this subparagraph (ii) as a result of an agreement,
      arrangement or understanding to vote such security if such agreement,
      arrangement or understanding: (x) arises solely from a revocable proxy
      given in response to a public proxy or consent solicitation made pursuant
      to, and in accordance with, the applicable provisions of the Exchange Act
      and the Exchange Act Regulations, and (y) is not reportable by such Person
      on Schedule 13D under the Exchange Act (or any comparable or successor
      report); or

            (iii) which are beneficially owned, directly or indirectly, by any
      other Person (or any Affiliate or Associate thereof) with which such
      Person (or any of such Person's


                                       2.
<PAGE>   6
      Affiliates or Associates) has any agreement, arrangement or understanding,
      (whether or not in writing, other than customary agreements with and
      between underwriters and selling group members with respect to a bona fide
      public offering of securities), for the purpose of acquiring, holding,
      voting (except to the extent contemplated by the proviso to subparagraph
      (i) of this paragraph (e)) or disposing of any securities of the Company;
      provided, however, that in no case shall an officer or director of the
      Company be deemed (A) the Beneficial Owner of any securities beneficially
      owned by another officer or director of the Company solely by reason of
      actions undertaken by such persons in their capacity as officers or
      directors of the Company or (B) the Beneficial Owner of securities held of
      record by the trustee of any employee benefit plan of the Company or any
      Subsidiary of the Company for the benefit of any employee of the Company
      or any Subsidiary of the Company, other than the officer or director, by
      reason of any influence that such officer or director may have over the
      voting of the securities held in the plan;

Notwithstanding anything in this definition of "Beneficial Owner" and
"beneficially own" to the contrary, the phrase "then outstanding," when used
with reference to a Person who is the Beneficial Owner of securities of the
Company, shall mean the number of such securities then issued and outstanding
together with the number of such securities not then actually issued and
outstanding which such Person would be deemed to beneficially own hereunder.

            "Business Day" shall mean any day other than a Saturday, a Sunday,
or a day on which banking institutions in the State of California or the state
in which the principal office of the Rights Agent is located are authorized or
obligated by law or executive order to close.

            "Close of Business" on any given date shall mean 5:00 P.M.,
Massachusetts time, on such date; provided, however, that if such date is not a
Business Day it shall mean 5:00 P.M., Massachusetts time, on the next succeeding
Business Day.

            "Common Stock" when used with reference to the Company shall mean
the shares of common stock, par value $.001 per share, of the Company. "Common
Stock" when used with reference to any Person other than the Company shall mean
the capital stock (or other equity interest) with the greatest voting power of
such other Person or, if such other Person is a Subsidiary of another Person,
the Person or Persons which ultimately control such first-mentioned Person.

            "Company" shall have the meaning set forth in the recitals to this
Agreement.

            "Continuing Director" shall mean a member of the Board of Directors
of the Company who is not an Acquiring Person, or an Affiliate or Associate of
an Acquiring Person, or a representative or agent of an Acquiring Person or of
any such Affiliate or Associate, and who was either (i) a member of the Board of
Directors prior to the date of this Agreement, or (ii) subsequently became a
member of the Board of Directors and whose election or nomination for election
is recommended or approved by a majority of the Continuing Directors then on the
Board of Directors.


                                       3.
<PAGE>   7
            "current per share market price" shall have the meaning set forth in
Section 11(d)(i) hereof.

            "Current Value" shall have the meaning set forth in Section
11(a)(iii) hereof.

            "Distribution Date" shall have the meaning set forth in Section 3(a)
hereof.

            "equivalent preferred shares" shall have the meaning set forth in
Section 11(b) hereof.

            "Exchange Act" shall mean the Securities Exchange Act of 1934, as
amended.

            "Exchange Act Regulations" shall mean the General Rules and
Regulations under the Exchange Act.

            "Exchange Ratio" shall have the meaning set forth in Section 24
hereof.

            "Expiration Date" shall have the meaning set forth in Section 7(a)
hereof.

            "Final Expiration Date" shall have the meaning set forth in Section
7(a) hereof.

            "NASDAQ" shall have the meaning set forth in Section 11(d) hereof.

            "Person" shall mean any individual, firm, corporation or other
entity, and shall include any successor (by merger or otherwise) of such entity.

            "Preferred Stock" shall mean shares of Series A Junior Participating
Preferred Stock, no par value, of the Company having the rights and preferences
set forth in the Form of Certificate of Determination attached to this Agreement
as Exhibit A.

            "preferred stock equivalents" shall have the meaning set forth in
Section 11(a)(iii) hereof.

            "Purchase Price" shall have the meaning set forth in Section 7(b)
hereof.

            "Record Date" shall have the meaning set forth in the recitals to
this Agreement.

            "Redemption Date" shall have the meaning set forth in Section 7(a)
hereof.

            "Redemption Price" shall have the meaning set forth in Section 23(a)
hereof.

            "Right" shall have the meaning set forth in the recitals to this
Agreement.

            "Rights Agent" shall have the meaning set forth in the recitals to
this Agreement.


                                       4.
<PAGE>   8
            "Rights Certificate" shall have the meaning set forth in Section
3(a) hereof.

            "Rights Dividend Declaration Date" shall have the meaning set forth
in the recitals to this Agreement.

            "Section 11(a)(ii) Event" shall mean any event described in Section
11(a)(ii)(A), (B) or (C) hereof.

            "Section 11(a)(ii) Trigger Date" shall have the meaning set forth in
Section 11(a)(iii) hereof.

            "Section 13 Event" shall mean any event described in clause (x), (y)
or (z) of Section 13(a) hereof.

            "Section 24(a) Exchange Ratio" has the meaning set forth in Section
24(a) hereof.

            "Securities Act" shall mean the Securities Act of 1933, as amended.

            "Shares Acquisition Date" shall mean the first date of public
announcement (which, for purposes of this definition, shall include, without
limitation, a report filed pursuant to Section 13(d) of the Exchange Act) by the
Company or an Acquiring Person that an Acquiring Person has become such.

            "Spread" shall have the meaning set forth in Section 11(a)(iii)
hereof.

            "Subsidiary" of any Person shall mean any corporation or other
entity of which a majority of the voting power of the voting equity securities
or equity interest is owned, directly or indirectly, by such Person.

            "Summary of Rights" shall have the meaning set forth in Section 3(b)
hereof.

            "Trading Day" shall have the meaning set forth in Section 11(d)(i)
hereof.

            "Triggering Event" shall mean any Section 11(a)(ii) Event or any
Section 13 Event.

            Section 2. Appointment of Rights Agent. The Company hereby appoints
the Rights Agent to act as agent for the Company in accordance with the terms
and conditions hereof, and the Rights Agent hereby accepts such appointment. The
Company may from time to time appoint such co-Rights Agents as it may deem
necessary or desirable, upon ten (10) days notice to the Rights Agent. The
Rights Agent shall have no duty to supervise, and in no event be liable for, the
acts or omissions of any such co-Rights Agent.


                                       5.
<PAGE>   9
            Section 3. Issue of Rights Certificate.

            (a)   Until the earlier of (i) the Close of Business on the Shares
Acquisition Date and (ii) the Close of Business on the tenth Business Day (or
such later date as may be determined by action of the Company's Board of
Directors upon approval by a majority of the Continuing Directors prior to such
time as any Person becomes an Acquiring Person and of which the Company will
give the Rights Agent prompt written notice) after the date that a tender or
exchange offer by any Person (other than the Company, any Subsidiary of the
Company, any employee benefit plan of the Company or of any Subsidiary of the
Company or any entity holding shares of Common Stock for or pursuant to the
terms of any such plan) is first published or sent or given within the meaning
of Rule 14d-4(a) of the Exchange Act Regulations or any successor rule or of the
first public announcement of the intention of any Person (other than the
Company, any Subsidiary of the Company, any employee benefit plan of the Company
or of any Subsidiary of the Company or any entity holding shares of Common Stock
for or pursuant to the terms of any such plan) to commence, a tender or exchange
offer, if upon consummation thereof such Person would be the Beneficial Owner of
15% or more of the shares of Company Common Stock then outstanding (the earlier
of (i) and (ii) above being the "Distribution Date"), (x) the Rights will be
evidenced (subject to the provisions of Section 3(b) hereof) by the certificates
for shares of Common Stock registered in the names of the holders thereof (which
certificates shall also be deemed to be Rights Certificate) and not by separate
Rights Certificate, and (y) the right to receive Rights Certificate will be
transferable only in connection with the transfer of shares of Common Stock. As
soon as practicable after the Distribution Date, the Company will notify the
Rights Agent thereof and the Company will prepare and execute, the Rights Agent
will countersign, and the Company will send or cause to be sent (and the Rights
Agent will, if requested, send) by first-class, insured, postage-prepaid mail,
to each record holder of shares of Common Stock as of the Close of Business on
the Distribution Date, at the address of such holder shown on the records of the
Company, a Rights Certificate, in substantially the form of Exhibit B hereto (a
"Rights Certificate"), evidencing one Right for each share of Common Stock so
held. As of the Distribution Date, the Rights will be evidenced solely by such
Rights Certificate.

            (b)   On the Record Date, or as soon as practicable thereafter, the
Company will send a copy of a Summary of Rights to Purchase Preferred Stock, in
substantially the form of Exhibit C hereto (the "Summary of Rights"), by
first-class, postage-prepaid mail, to each record holder of shares of Common
Stock as of the Close of Business on the Record Date, at the address of such
holder shown on the records of the Company. With respect to certificates for
shares of Common Stock outstanding as of the Record Date, until the Distribution
Date, the Rights will be evidenced by such certificates registered in the names
of the holders thereof together with a copy of the Summary of Rights attached
thereto. Until the Distribution Date (or the Expiration Date), the surrender for
transfer of any certificate for shares of Common Stock outstanding on the Record
Date, with or without a copy of the Summary of Rights attached thereto, shall
also constitute the transfer of the Rights associated with the shares of Common
Stock represented thereby.


                                       6.
<PAGE>   10
            (c)   Articles for shares of Common Stock which become outstanding
(including, without limitation, reacquired shares of Common Stock referred to in
the last sentence of this paragraph (c)) after the Record Date but prior to the
earlier of the Distribution Date and the Expiration Date shall have impressed
on, printed on, written on or otherwise affixed to them the following legend:

            This certificate also evidences and entitles the holder hereof to
            certain rights as set forth in a Rights Agreement between Cisco
            Systems, Inc. and Bank Boston, N.A., dated as of June 10, 1998 (the
            "Rights Agreement"), the terms of which are hereby incorporated
            herein by reference and a copy of which is on file at the principal
            executive offices of Cisco Systems, Inc. Under certain
            circumstances, as set forth in the Rights Agreement, such Rights
            will be evidenced by separate certificates and will no longer be
            evidenced by this certificate. Cisco Systems, Inc. will mail to the
            holder of this certificate a copy of the Rights Agreement without
            charge after receipt of a written request therefor. Under certain
            circumstances, as set forth in the Rights Agreement, Rights issued
            to any Person who becomes an Acquiring Person (as defined in the
            Rights Agreement), whether currently held by or on behalf of such
            person or by any subsequent holder, may become null and void.

With respect to such certificates containing the foregoing legend, until the
earlier of the Distribution Date and the Expiration Date, the Rights associated
with the shares of Common Stock represented by such certificates shall be
evidenced by such certificates alone, and the surrender for transfer of any such
certificate shall also constitute the transfer of the Rights associated with the
shares of Common Stock represented thereby. In the event that the Company
purchases or acquires any shares of Common Stock after the Record Date but prior
to the Distribution Date, any Rights associated with such shares of Common Stock
shall be deemed cancelled and retired so that the Company shall not be entitled
to exercise any Rights associated with the shares of Common Stock which are no
longer outstanding.

            Section 4. Form of Rights Certificate.

            (a)   The Rights Certificate (and the forms of election to purchase
Units of Preferred Stock and of assignment to be printed on the reverse thereof)
shall be substantially the same as Exhibit B hereto and may have such marks of
identification or designation and such legends, summaries or endorsements
printed thereon as the Company may deem appropriate and as are not inconsistent
with the provisions of this Agreement, or as may be required to comply with any
applicable law or with any rule or regulation made pursuant thereto or with any
rule or regulation of any stock exchange or transaction reporting system on
which the Rights may from time to time be listed, or to conform to usage.
Subject to the provisions of Section 11 and Section 22 hereof, the Rights
Certificate shall entitle the holders thereof to purchase the number of Units of
Preferred Stock as shall be set forth therein at the price per Unit of Preferred
Stock


                                       7.
<PAGE>   11
set forth therein, but the number of such Units of Preferred Stock and the
Purchase Price shall be subject to adjustment as provided herein.

            (b)   Any Rights Certificate issued pursuant hereto that represents
Rights beneficially owned by: (i) an Acquiring Person or any Associate or
Affiliate of an Acquiring Person, (ii) a transferee of an Acquiring Person (or
of any such Associate or Affiliate) who becomes a transferee after the Acquiring
Person becomes such or (iii) a transferee of an Acquiring Person (or of any such
Associate or Affiliate) who becomes a transferee prior to or concurrently with
the Acquiring Person becoming such and receives such Rights pursuant to either
(A) a transfer (whether or not for consideration) from the Acquiring Person to
holders of equity interests in such Acquiring Person or to any Person with whom
such Acquiring Person has any continuing agreement, arrangement or understanding
regarding the transferred Rights or (B) a transfer which a majority of the
Continuing Directors of the Company has determined is part of a plan,
arrangement or understanding which has as a primary purpose or effect avoidance
of Section 7(e) hereof shall contain (to the extent feasible) the following
legend:

            The Rights represented by this Rights Certificate are or were
            beneficially owned by a Person who was or became an Acquiring Person
            or an Affiliate or Associate of an Acquiring Person (as such terms
            are defined in the Rights Agreement between Cisco Systems, Inc. and
            Bank Boston, N.A., as Rights Agent, dated as of June 10, 1998 (the
            "Rights Agreement"). Accordingly, this Rights Certificate and the
            Rights represented hereby may become null and void in the
            circumstances specified in Section 7(e) of the Rights Agreement.

            Section 5. Countersignature and Registration.

            (a)   The Rights Certificate shall be executed on behalf of the
Company by its Chairman of the Board, its President, any of its Vice Presidents,
or its Chief Financial Officer, either manually or by facsimile signature, shall
have affixed thereto the Company's seal or a facsimile thereof, and shall be
attested by the Secretary or an Assistant Secretary of the Company, either
manually or by facsimile signature. The Rights Certificate shall be manually
countersigned by the Rights Agent and shall not be valid for any purpose unless
countersigned. In case any officer of the Company who shall have signed any of
the Rights Certificate shall cease to be such officer of the Company before
countersignature by the Rights Agent and issuance and delivery by the Company,
such Rights Certificate, nevertheless, may be countersigned by the Rights Agent
and issued and delivered by the Company with the same force and effect as though
the person who signed such Rights Certificate had not ceased to be such officer
of the Company; and any Rights Certificate may be signed on behalf of the
Company by any person who, at the actual date of the execution of such Rights
Certificate, shall be a proper officer of the Company to sign such Rights
Certificate, although at the date of the execution of this Rights Agreement any
such person was not such an officer.


                                       8.
<PAGE>   12
            (b)   Following the Distribution Date, the Rights Agent will keep or
cause to be kept, at its office designated for such purpose, books for
registration and transfer of the Rights Certificate issued hereunder. Such books
shall show the names and addresses of the respective holders of the Rights
Certificate, the number of Rights evidenced on its face by each of the Rights
Certificate and the date of each of the Rights Certificate.

            Section 6. Transfer, Split-Up, Combination and Exchange of Rights
Certificate; Mutilated, Destroyed, Lost or Stolen Rights Certificate.

            (a)   Subject to the provisions of Sections 4(b), 7(e) and 14
hereof, at any time after the Close of Business on the Distribution Date, and at
or prior to the Close of Business on the Expiration Date, any Rights Certificate
or Rights Certificate may be transferred, split up, combined or exchanged for
another Rights Certificate or Rights Certificate, entitling the registered
holder to purchase a like number of Units of Preferred Stock (or, following a
Triggering Event, other securities, cash or other assets, as the case may be) as
the Rights Certificate or Rights Certificate surrendered then entitled such
holder to purchase. Any registered holder desiring to transfer, split up,
combine or exchange any Rights Certificate or Rights Certificate shall make such
request in writing delivered to the Rights Agent, and shall surrender the Rights
Certificate or Rights Certificate to be transferred, split up, combined or
exchanged at the office of the Rights Agent designated for such purpose. Neither
the Rights Agent nor the Company shall be obligated to take any action
whatsoever with respect to the transfer of any such surrendered Rights
Certificate until the registered holder shall have completed and signed the
certificate contained in the form of assignment on the reverse side of such
Rights Certificate and shall have provided such additional evidence of the
identity of the Beneficial Owner (or former Beneficial Owner) or Affiliates or
Associates thereof as the Company shall reasonably request. Thereupon the Rights
Agent shall, subject to Sections 4(b), 7(e) and 14 hereof, countersign and
deliver to the person entitled thereto a Rights Certificate or Rights
Certificate, as the case may be, as so requested. The Company may require
payment of a sum sufficient to cover any tax or governmental charge that may be
imposed in connection with any transfer, split up, combination or exchange of
Rights Certificate.

            (b)   Upon receipt by the Company and the Rights Agent of evidence
reasonably satisfactory to them of the loss, theft, destruction or mutilation of
a Rights Certificate, and, in case of loss, theft or destruction, of indemnity
or security reasonably satisfactory to them, and, at the Company's request,
reimbursement to the Company and the Rights Agent of all reasonable expenses
incidental thereto, and upon surrender to the Rights Agent and cancellation of
the Rights Certificate if mutilated, the Company will make and deliver a new
Rights Certificate of like tenor to the Rights Agent for delivery to the
registered holder in lieu of the Rights Certificate so lost, stolen, destroyed
or mutilated.

            Section 7. Exercise of Rights; Purchase Price; Expiration Date of
Rights.

            (a)   Except as provided in Sections 23(c) and 7(e), the registered
holder of any Rights Certificate may exercise the Rights evidenced thereby
(except as otherwise provided


                                       9.
<PAGE>   13
herein) in whole or in part at any time after the Distribution Date upon
surrender of the Rights Certificate, with the form of election to purchase and
certification on the reverse side thereof duly executed, to the Rights Agent at
the office of the Rights Agent designated for such purpose, together with
payment of the Purchase Price for each Unit of Preferred Stock as to which the
Rights are exercised, at or prior to the earliest of (i) the Close of Business
on the tenth anniversary hereof (the "Final Expiration Date"), (ii) the time at
which the Rights are redeemed as provided in Section 23 hereof (the "Redemption
Date"), or (iii) the time at which such Rights are exchanged as provided in
Section 24 hereof (the earlier of (i), (ii) and (iii) being the "Expiration
Date").

            (b)   The Purchase Price for each Unit of Preferred Stock pursuant
to the exercise of a Right shall initially be $650.00, shall be subject to
adjustment from time to time as provided in Sections 11 and 13 hereof and shall
be payable in lawful money of the United States of America in accordance with
paragraph (c) below.

            (c)   Upon receipt of a Rights Certificate representing exercisable
Rights, with the form of election to purchase duly executed, accompanied by
payment of the Purchase Price for the number of Units of Preferred Stock (or
other securities or property, as the case may be) to be purchased and an amount
equal to any applicable transfer tax required to be paid by the holder of such
Rights Certificate in accordance with Section 9 hereof in cash, or by certified
check or cashier's check payable to the order of the Company, the Rights Agent
shall, subject to Section 20(k) hereof, thereupon promptly (i) (A) requisition
from any transfer agent of the Preferred Stock (or make available, if the Rights
Agent is the transfer agent for the Preferred Stock) a certificate or
certificates for the number of Units of Preferred Stock to be purchased and the
Company hereby irrevocably authorizes its transfer agent to comply with all such
requests or (B) if the Company shall have elected to deposit the total number of
Units of Preferred Stock issuable upon exercise of the Rights hereunder with a
depositary agent, requisition from the depositary agent of a depositary receipt
or depositary receipts representing such number of Units of Preferred Stock as
are to be purchased (in which case certificates for the Units of Preferred Stock
represented by such receipt or receipts shall be deposited by the transfer agent
with the depositary agent) and the Company hereby directs the depositary agent
to comply with such request, (ii) when appropriate, requisition from the Company
the amount of cash to be paid in lieu of issuance of fractional shares in
accordance with Section 14 hereof, (iii) after receipt of such certificates or
depositary receipts, cause the same to be delivered to or upon the order of the
registered holder of such Rights Certificate, registered in such name or names
as may be designated by such holder and (iv) when appropriate, after receipt
thereof, deliver such cash to or upon the order of the registered holder of such
Rights Certificate. The payment of the Purchase Price (as such amount may be
reduced (including to zero) pursuant to Section 11(a)(iii) hereof) may be made
in cash or by certified bank check or bank draft payable to the order of the
Company. In the event that the Company is obligated to issue other securities of
the Company, pay cash and/or distribute other property pursuant to Section 11(a)
hereof, the Company will make all arrangements necessary so that such other
securities, cash and/or other property are available for distribution by the
Rights Agent, if and when appropriate.


                                      10.
<PAGE>   14
            (d)   In case the registered holder of any Rights Certificate shall
exercise less than all the Rights evidenced thereby, a new Rights Certificate
evidencing a number of Rights equivalent to the number of Rights remaining
unexercised shall be issued by the Rights Agent to the registered holder of such
Rights Certificate or to such registered holder's duly authorized assigns,
subject to the provisions of Section 14 hereof.

            (e)   Notwithstanding anything in this Agreement to the contrary,
from and after the first occurrence of a Triggering Event, any Rights
beneficially owned by (i) an Acquiring Person or an Associate or Affiliate of an
Acquiring Person, (ii) a transferee of an Acquiring Person (or of any such
Associate or Affiliate) who becomes a transferee after the Acquiring Person
becomes such, (iii) a transferee of an Acquiring Person (or of any such
Associate or Affiliate) who becomes a transferee prior to or concurrently with
the Acquiring Person becoming such and receives such Rights pursuant to either
(A) a transfer (whether or not for consideration) from the Acquiring Person to
holders of equity interests in such Acquiring Person or to any Person with whom
the Acquiring Person has any continuing agreement, arrangement or understanding
regarding the transferred Rights or (B) a transfer which the a majority of the
Continuing Directors of the Company has determined is part of a plan,
arrangement or understanding which has as a primary purpose or effect the
avoidance of this Section 7(e) or (iv) any subsequent transferee shall become
null and void without any further action and no holder of such Rights shall have
any rights whatsoever with respect to such Rights, whether under any provision
of this Agreement or otherwise. The Company shall use all reasonable efforts to
ensure that the provisions of this Section 7(e) and Section 4(b) hereof are
complied with, but shall have no liability to any holder of Rights Certificate
or to any other Person as a result of its failure to make any determinations
with respect to an Acquiring Person or any of such Acquiring Person's
Affiliates, Associates or transferees hereunder.

            (f)   Notwithstanding anything in this Agreement to the contrary,
neither the Rights Agent nor the Company shall be obligated to undertake any
action with respect to a registered holder upon the occurrence of any purported
exercise as set forth in this Section 7 unless such registered holder shall have
(i) completed and signed the certificate contained in the form of election to
purchase set forth on the reverse side of the Rights Certificate surrendered for
such exercise and (ii) provided such additional evidence of the identity of the
Beneficial Owner (or former Beneficial Owner) or Affiliates or Associates
thereof as the Company shall reasonably request.

            Section 8. Cancellation and Destruction of Rights Certificate. All
Rights Certificate surrendered for the purpose of exercise, transfer, split up,
combination or exchange shall, if surrendered to the Company or to any of its
agents, be delivered to the Rights Agent for cancellation or in cancelled form,
or, if surrendered to the Rights Agent, shall be cancelled by it, and no Rights
Certificate shall be issued in lieu thereof except as expressly permitted by any
of the provisions of this Rights Agreement. The Company shall deliver to the
Rights Agent for cancellation and retirement, and the Rights Agent shall so
cancel and retire, any other Rights Certificate purchased or acquired by the
Company otherwise than upon the exercise thereof. The Rights Agent shall deliver
all cancelled Rights Certificate to the Company, or shall, at the written


                                      11.
<PAGE>   15
request of the Company, destroy such cancelled Rights Certificate, and in such
case shall deliver a certificate of destruction thereof to the Company.

            Section 9. Reservation and Availability of Preferred Stock.

            (a)   The Company covenants and agrees that it will use its best
efforts to cause to be reserved and kept available out of and to the extent of
its authorized and unissued Units of Preferred Stock not reserved for another
purpose that will be sufficient to permit the exercise in full of all
outstanding Rights. Upon the occurrence of any events resulting in an increase
in the aggregate number of shares of Preferred Stock (or other equity securities
of the Company) issuable upon exercise of all outstanding Rights above the
number then reserved, the Company shall make appropriate increases in the number
of shares so reserved.

            (b)   If the Units of Preferred Stock to be issued and delivered
upon the exercise of the Rights are at any time listed on a national securities
exchange or included for quotation on any transaction reporting system, the
Company shall during the period from the Distribution Date to the Expiration
Date use its best efforts to cause all shares reserved for such issuance to be
listed on such exchange or included for quotation on any such transaction
reporting system upon official notice of issuance upon such exercise.

            (c)   The Company shall use its best efforts to (i) file, as soon as
practicable following the earliest date after the first occurrence of a Section
11(a)(ii) Event in which the consideration to be delivered by the Company upon
exercise of the Rights has been determined in accordance with Section 11(a)(iii)
hereof, or as soon as is required by law following the Distribution Date, as the
case may be, a registration statement under the Securities Act, with respect to
the securities purchasable upon exercise of the Rights on an appropriate form,
(ii) cause such registration statement to become effective as soon as
practicable after such filing and (iii) cause such registration statement to
remain effective (with a prospectus at all times meeting the requirements of the
Securities Act) until the earlier of (A) the date as of which the Rights are no
longer exercisable for such securities and (B) the Expiration Date. The Company
will also take such action as may be appropriate under, or to ensure compliance
with, the securities or "blue sky" laws of the various states in connection with
the exercisability of the Rights. Notwithstanding any provision of this
Agreement to the contrary, the Rights shall not be exercisable in any
jurisdiction, unless the requisite qualification in such jurisdiction shall have
been obtained, or an exemption therefrom shall be available and until a
registration statement has been declared effective.

            (d)   The Company covenants and agrees that it will take all such
action as may be necessary to ensure that all Units of Preferred Stock (and,
following the occurrence of a Triggering Event, any other securities that may be
delivered upon exercise of Rights) shall, at the time of delivery of the
certificates for such Units of Preferred Stock (subject to payment of the
Purchase Price), be duly and validly authorized and issued and fully paid and
non-assessable.


                                      12.
<PAGE>   16
            (e)   The Company further covenants and agrees that it will pay when
due and payable any and all federal and state transfer taxes and charges which
may be payable in respect of the issuance or delivery of the Rights Certificate
or of any Units of Preferred Stock upon the exercise of Rights. The Company
shall not, however, be required to pay any transfer tax which may be payable in
respect of any transfer or delivery of Rights Certificate to a person other
than, or the issuance or delivery of certificates or depositary receipts for
Units of Preferred Stock in a name other than that of, the registered holder of
the Rights Certificate evidencing Rights surrendered for exercise or to issue or
to deliver any certificates or depositary receipts for Units of Preferred Stock
upon the exercise of any Rights until any such tax shall have been paid (any
such tax being payable by the holder of such Rights Certificate at the time of
surrender) or until it has been established to the Company's reasonable
satisfaction that no such tax is due.

            Section 10. Preferred Stock Record Date. Each person in whose name
any certificate for Units of Preferred Stock (or, following the occurrence of a
Triggering Event, other securities) is issued upon the exercise of Rights shall
for all purposes be deemed to have become the holder of record of the Units of
Preferred Stock (or, following the occurrence of a Triggering Event, other
securities) represented thereby on, and such certificate shall be dated, the
date upon which the Rights Certificate evidencing such Rights was duly
surrendered and payment of the Purchase Price (and any applicable transfer
taxes) was made; provided, however, that if the date of such surrender and
payment is a date upon which the Preferred Stock (or, following the occurrence
of a Triggering Event, other securities) transfer books of the Company are
closed, such person shall be deemed to have become the record holder of such
shares on, and such certificate shall be dated, the next succeeding Business Day
on which the Preferred Stock transfer books of the Company are open; provided
further, however, that if delivery of Units of Preferred Stock is delayed
pursuant to Section 9(c), such Persons shall be deemed to have become the record
holders of such Units of Preferred Stock only when such Units first become
deliverable. Prior to the exercise of the Rights evidenced thereby, the holder
of a Rights Certificate shall not be entitled to any rights of a shareholder of
the Company with respect to securities for which the Rights shall be
exercisable, including, without limitation, the right to vote, to receive
dividends or other distributions or to exercise any preemptive rights, and shall
not be entitled to receive any notice of any proceedings of the Company, except
as provided herein. Prior to the exercise of the Rights evidenced thereby, the
holder of a Rights Certificate shall not be entitled to any rights of a holder
of a Unit of Preferred Stock for which the Rights shall be exercisable,
including, without limitation, the right to vote, to receive dividends or other
distributions or to exercise any preemptive rights, and shall not be entitled to
receive any notice of any proceedings of the Company, except as provided herein.

            Section 11. Adjustment of Purchase Price, Number of Shares or Number
of Rights. The Purchase Price, the number and kinds of securities covered by
each Right and the number of Rights outstanding are subject to adjustment from
time to time as provided in this Section 11.

            (a)   (i)   In the event the Company shall at any time after the 
      date of this Agreement (A) declare a dividend on the Preferred Stock
      payable in shares of Preferred


                                      13.
<PAGE>   17
      Stock, (B) subdivide the outstanding shares of Preferred Stock, (C)
      combine the outstanding Preferred Stock into a smaller number of shares
      Preferred Stock or (D) issue any shares of its capital stock in a
      reclassification of the Preferred Stock (including any such
      reclassification in connection with a consolidation or merger in which the
      Company is the continuing or surviving corporation), except as otherwise
      provided in this Section 11(a), the Purchase Price in effect at the time
      of the record date for such dividend or of the effective date of such
      subdivision, combination or reclassification, and the number and kind of
      shares of capital stock issuable on such date, shall be proportionately
      adjusted so that the holder of any Rights exercised after such time shall
      be entitled to receive the aggregate number and kind of shares of capital
      stock which, if such Rights had been exercised immediately prior to such
      date and at a time when the Preferred Stock transfer books of the Company
      were open, such holder would have owned upon such exercise and been
      entitled to receive by virtue of such dividend, subdivision, combination
      or reclassification; provided, however, that in no event shall the
      consideration to be paid upon the exercise of one Right be less than the
      aggregate par value of the shares of capital stock of the Company issuable
      upon exercise of one Right. If an event occurs which would require an
      adjustment under both this Section 11(a)(i) and Section 11(a)(ii), the
      adjustment provided for in this Section 11(a)(i) shall be in addition to,
      and shall be made prior, to any adjustment required pursuant to Section
      11(a)(ii).

                  (ii)  Subject to Section 24 of this Agreement, in the event
      that (A) any Acquiring Person or any Associate or Affiliate of any
      Acquiring Person, at any time after the date of this Agreement, directly
      or indirectly, shall (1) merge into the Company or otherwise combine with
      the Company and the Company shall be the continuing or surviving
      corporation of such merger or combination and shares of Company Common
      Stock shall remain outstanding and unchanged, (2) in one transaction or a
      series of transactions, transfer any assets to the Company or any of its
      Subsidiaries in exchange (in whole or in part) for shares of Company
      Common Stock, for other equity securities of the Company or any such
      Subsidiary, or for securities exercisable for or convertible into shares
      of equity securities of the Company or any of its Subsidiaries (whether
      shares of Company Common Stock or otherwise) or otherwise obtain from the
      Company or any of its Subsidiaries, with or without consideration, any
      additional shares of such equity securities or securities exercisable for
      or convertible into such equity securities other than pursuant to a pro
      rata distribution to all holders of shares of Company Common Stock, (3)
      sell, purchase, lease, exchange, mortgage, pledge, transfer or otherwise
      acquire or dispose of, in one transaction or a series of transactions, to,
      from or with the Company or any of its Subsidiaries or any employee
      benefit plan maintained by the Company or any of its Subsidiaries or any
      trustee or fiduciary with respect to such plan acting in such capacity,
      assets (including securities) on terms and conditions less favorable to
      the Company or such Subsidiary or plan than those that could have been
      obtained in arm's- length negotiations with an unaffiliated third party,
      other than pursuant to a transaction set forth in Section 13(a) hereof,
      (4) sell, purchase, lease, exchange, mortgage, pledge, transfer or
      otherwise acquire or dispose of, in one transaction or a series of
      transactions, to, from or with the Company or any of its Subsidiaries or
      any employee benefit plan


                                      14.
<PAGE>   18
      maintained by the Company or any of its Subsidiaries or any trustee or
      fiduciary with respect to such plan acting in such capacity (other than
      transactions, if any, consistent with those engaged in, as of the date
      hereof, by the Company and such Acquiring Person or such Associate or
      Affiliate), assets (including securities or intangible assets) having an
      aggregate fair market value of more than $70,000,000 other than pursuant
      to a transaction set forth in Section 13(a) hereof, (5) receive, or any
      designee, agent or representative of such Acquiring Person or any
      Affiliate or Associate of such Acquiring Person shall receive, any
      compensation from the Company or any of its Subsidiaries other than
      compensation for full-time employment as a regular employee at rates in
      accordance with the Company's (or its Subsidiaries') past practices, or
      (6) receive the benefit, directly or indirectly (except proportionately as
      a holder of shares of Company Common Stock or as required by law or
      governmental regulation), of any loans, advances, guarantees, pledges or
      other financial assistance or any tax credits or other tax advantages
      provided by the Company or any of its Subsidiaries or any employee benefit
      plan maintained by the Company or any of its Subsidiaries or any trustee
      or fiduciary with respect to such plan acting in such capacity; or (B) any
      Person shall become an Acquiring Person, unless the event causing the
      Person to become an Acquiring Person is a transaction set forth in Section
      13(a); or (C) during such time as there is an Acquiring Person, there
      shall be any reclassification of securities (including any reverse stock
      split), or recapitalization of the Company, or any merger or consolidation
      of the Company with any of its Subsidiaries or any other transaction or
      series of transactions involving the Company or any of its Subsidiaries,
      other than a transaction or transactions to which the provisions of
      Section 13(a) apply (whether or not with or into or otherwise involving an
      Acquiring Person), which has the effect, directly or indirectly, of
      increasing by more than 1% the proportionate share of the outstanding
      shares of any class of equity securities of the Company or any of its
      Subsidiaries that is directly or indirectly beneficially owned by any
      Acquiring Person or any Person or any Associate or Affiliate of any
      Acquiring Person;

then promptly following the occurrence of an event described in Section
11(a)(ii)(A), (B) or (C) (a "Section 11(a)(ii) Event"), proper provision shall
be made so that each holder of a Right, except as provided in Section 7(e)
hereof, shall thereafter have the right to receive for each Right, upon exercise
thereof in accordance with the terms of this Agreement and payment of the
then-current Purchase Price, in lieu of the number of Units of Preferred Stock
for which a Right was exercisable immediately prior to the first occurrence of a
Section 11(a)(ii) Event, such number of Units of Preferred Stock as shall equal
the result obtained by multiplying the then-current Purchase Price by the then
number of Units of Preferred Stock for which a Right was exercisable (or would
have been exercisable if the Distribution Date had occurred) immediately prior
to the first occurrence of a Triggering Event, and dividing that product by 50%
of the current per share market price (determined pursuant to Section 11(d)
hereof) for shares of Common Stock on the date of occurrence of the Triggering
Event (such number of Units of Preferred Stock being hereinafter referred to as
the "Adjustment Shares").

                  (iii) In the event that the number of Units of Preferred Stock
      which are authorized by the Company's Restated Articles of Incorporation
      but not outstanding or


                                      15.
<PAGE>   19
      reserved for issuance for purposes other than upon exercise of the Rights
      are not sufficient to permit the exercise in full of the Rights, or if any
      necessary regulatory approval for such issuance has not been obtained by
      the Company, the Company shall, in lieu of issuing Units of Preferred
      Stock in accordance with Section 11(a)(ii) hereof, upon approval by a
      majority of the Continuing Directors: (A) determine the excess of (1) the
      value of the Units of Preferred Stock issuable upon the exercise of a
      Right (the "Current Value") over (2) the Purchase Price (such excess being
      referred to as the "Spread") and (B) with respect to each Right, make
      adequate provision to substitute for such Units of Preferred Stock, upon
      exercise of the Rights, (1) cash, (2) a reduction in the Purchase Price,
      (3) other equity securities of the Company (including, without limitation,
      Common Stock or shares or units of shares of any series of preferred stock
      which the Board of Directors of the Company, upon approval by a majority
      of the Continuing Directors, has deemed to have the same value as the
      Units of Preferred Stock (such shares or units of preferred stock are
      herein called "preferred stock equivalents")), except to the extent that
      the Company has not obtained any necessary regulatory approval for such
      issuance, (4) debt securities of the Company, except to the extent that
      the Company has not obtained any necessary regulatory approval for such
      issuance, (5) other assets or (6) any combination of the foregoing, having
      an aggregate value equal to the Current Value, where such aggregate value
      has been determined by the Board of Directors of the Company, upon
      approval by a majority of the Continuing Directors, based upon the advice
      of a nationally recognized investment banking firm selected by the Board
      of Directors of the Company, upon approval by a majority of the Continuing
      Directors; provided, however, if the Company shall not have made adequate
      provision to deliver value pursuant to clause (B) above within thirty (30)
      days following the later of (x) occurrence of a Section 11(a)(ii) Event,
      and (y) the date on which the Company's right of redemption pursuant to
      Section 23(a) expires (the later of (x) and (y) being referred to herein
      as the "Section 11(a)(iii) Trigger Date"), then the Company shall be
      obligated to deliver, upon the surrender for exercise of a Right and
      without requiring payment of the Purchase Price, Units of Preferred Stock
      (to the extent available), except to the extent that the Company has not
      obtained any necessary regulatory approval for such issuance, and then, if
      necessary, cash, which Units and/or cash have an aggregate value equal to
      the Spread.

            (b)   In the event that the Company shall fix a record date for the
issuance of rights, options or warrants to all holders of Units of Preferred
Stock entitling them (for a period expiring within 45 calendar days after such
record date) to subscribe for or purchase Units of Preferred Stock (or shares
having the same rights, privileges and preferences as the Preferred Stock
("equivalent preferred stock")) or securities convertible into Units of
Preferred Stock or equivalent preferred stock at a price per Unit of Preferred
Stock or equivalent preferred share (or having a conversion price per share, if
a security convertible into Units of Preferred Stock or equivalent preferred
stock) less than the then current per share market price of a Unit of Preferred
Stock (as determined pursuant to Section 11(d)) on such record date, the
Purchase Price to be in effect after such record date shall be determined by
multiplying the Purchase Price in effect immediately prior to such record date
by a fraction, the numerator of which shall be the number


                                      16.
<PAGE>   20
of Units of Preferred Stock outstanding on such record date plus the number of
Units of Preferred Stock which the aggregate offering price of the total number
of Units of Preferred Stock and/or equivalent preferred stock so to be offered
(and/or the aggregate initial conversion price of the convertible securities so
to be offered) would purchase at such current market price and the denominator
of which shall be the number of Units of Preferred Stock outstanding on such
record date plus the number of additional Units of Preferred Stock and/or
equivalent preferred stock to be offered for subscription or purchase (or into
which the convertible securities so to be offered are initially convertible). In
case such subscription price may be paid in a consideration part or all of which
shall be in a form other than cash, the value of such consideration shall be as
determined in good faith by a majority of the Continuing Directors of the
Company, whose determination shall be described in a statement filed with the
Rights Agent and shall be binding on the Rights Agent and the holders of the
Rights. Units of Preferred Stock owned by or held for the account of the Company
shall not be deemed outstanding for the purpose of any such computation. Such
adjustment shall be made successively whenever such a record date is fixed; and
in the event that such rights, options or warrants are not so issued, the
Purchase Price shall be adjusted to be the Purchase Price which would then be in
effect if such record date had not been fixed.

            (c)   In case the Company shall fix a record date for a distribution
to all holders of Units of Preferred Stock (including any such distribution made
in connection with a consolidation or merger in which the Company is the
continuing or surviving corporation) of evidences of indebtedness, cash (other
than a regular quarterly cash dividend) assets (other than a dividend payable in
Units of Preferred Stock but including any dividend payable in equity securities
other than Preferred Stock) or subscription rights or warrants (excluding those
referred to in Section 11(d) hereof), the Purchase Price to be in effect after
such record date shall be determined by multiplying the Purchase Price in effect
immediately prior to such record date by a fraction, the numerator of which
shall be the then current per share market price (as determined pursuant to
Section 11(d)) of the Preferred Stock on such record date, less the fair market
value (as determined in good faith by a majority of the Continuing Directors of
the Company, whose determination shall be described in a statement filed with
the Rights Agent and shall be binding on the Rights Agent and the holder of
rights) of the cash, assets or evidences of indebtedness to be distributed or of
such subscription rights or warrants distributable in respect of a share of
Preferred Stock and the denominator of which shall be such current per share
market price (as determined pursuant to Section 11(d)) of a share of Preferred
Stock. Such adjustments shall be made successively whenever such a record date
is fixed; and in the event that such distribution is not so made, the Purchase
Price shall again be adjusted to be the Purchase Price which would then be in
effect if such record date had not been fixed.

            (d)   (i)   For the purpose of any computation hereunder, the 
      "current per share market price" of any security (a "Security" for the
      purpose of this Section 11(d)(i)) on any date shall be deemed to be the
      average of the daily closing prices per share of such Security for the
      thirty (30) consecutive Trading Days (as such term is hereinafter defined)
      immediately prior to such date; provided, however, that in the event that
      the "current per share market price" of the Security is determined during
      a period following the


                                      17.
<PAGE>   21
      announcement by the issuer of such Security of (A) a dividend or
      distribution on such Security payable in shares of such Security or
      securities convertible into such shares, or (B) any subdivision,
      combination or reclassification of such Security and prior to the
      expiration of thirty (30) Trading Days after the ex-dividend date for such
      dividend or distribution, or the record date for such subdivision,
      combination or reclassification, then, and in each such case, the "current
      per share market price" shall be appropriately adjusted to reflect the
      "current market price" per share equivalent of such Security. The closing
      price for each day shall be the last sale price, regular way, or, in case
      no such sale takes place on such day, the average of the closing bid and
      asked prices, regular way, in either case as reported in the principal
      consolidated transaction reporting system with respect to securities
      listed or admitted to trading on the Nasdaq National Market System
      ("NASDAQ") or, if the Security is not listed or admitted to trading on the
      NASDAQ, as reported in the principal consolidated transaction reporting
      system with respect to securities listed on the principal national
      securities exchange on which the Security is listed or admitted to trading
      or, if the Security is not listed or admitted to trading on any national
      securities exchange, the last quoted price or, if not so quoted, the
      average of the high bid and low asked prices in the over-the-counter
      market, as reported by the NASDAQ or such other system then in use, or, if
      on any such date the Security is not quoted by any such organization, the
      average of the closing bid and asked prices as furnished by a professional
      market maker making a market in the Security selected by a majority of the
      Continuing Directors. If on any such date no market maker is making a
      market in the Security, the "current per share market price" of such
      Security on such date as determined in good faith by the Board of
      Directors of the Company as provided for above shall be used. The term
      "Trading Day" shall mean a day on which the principal national securities
      exchange on which the Security is listed or admitted to trading is open
      for the transaction of business or, if the Security is not listed or
      admitted to trading on any national securities exchange, a Business Day.

                  (ii)  For the purpose of any computation hereunder, the
      "current per share market price" of the Preferred Stock shall be
      determined in accordance with the method set forth in Section 11(d)(i). If
      the "current per share market price" of the Preferred Stock cannot be
      determined in the manner provided above or if the Preferred Stock is not
      publicly held or listed or traded in a manner described in clause (i) of
      this Section 11(d), the "current per share market price" of the Preferred
      Stock shall be conclusively deemed to be an amount equal to $10,000 (as
      such amount may be appropriately adjusted for such events as stock splits,
      stock dividends and recapitalizations with respect to shares of Company
      Common Stock occurring after the date of this Agreement) multiplied by the
      current market price per share of Company Common Stock. If shares of
      neither the Company Common Stock nor Preferred Stock is publicly held or
      so listed or traded, "current per share market price" of the Preferred
      Stock shall mean the fair value per share as determined in good faith by
      the Board of Directors of the Company, upon approval by a majority of the
      Continuing Directors, whose determination shall be described in a
      statement filed with the Rights Agent and shall be binding on the Rights
      Agent and the holders of the Rights.


                                      18.
<PAGE>   22
            (e)   No adjustment in the Purchase Price shall be required unless
such adjustment would require an increase or decrease of at least 1% in the
Purchase Price; provided, however, that any adjustments which by reason of this
Section 11(e) are not required to be made shall be carried forward and taken
into account in any subsequent adjustment. All calculations under this Section
11 shall be made to the nearest cent or to the nearest one one-millionth of a
share of Preferred Stock or one one-hundredth of any other share or security as
the case may be. Notwithstanding the first sentence of this Section 11(e), any
adjustment required by this Section 11 shall be made no later than the earlier
of (i) three years from the date of the transaction which requires such
adjustment or (ii) the Expiration Date.

            (f)   If as a result of an adjustment made pursuant to Section
11(a)(ii) hereof, the holder of any Rights thereafter exercised shall become
entitled to receive any shares of capital stock of the Company other than Units
of Preferred Stock, thereafter the number of such other shares so receivable
upon exercise of any Rights and the Purchase Price thereof shall be subject to
adjustment from time to time in a manner and on terms as nearly equivalent as
practicable to the provisions with respect to the Preferred Stock contained in
Section 11(a), (b), (c), (d), (e), (g), (h), (i), (j), (k), (l) and (m), and the
provisions of Sections 7, 9, 10, 13 and 14 with respect to the Preferred Stock
shall apply on like terms to any such other shares.

            (g)   All Rights originally issued by the Company subsequent to any
adjustment made to the Purchase Price hereunder shall evidence the right to
purchase, at the adjusted Purchase Price, the number of Units of Preferred Stock
purchasable from time to time hereunder upon exercise of the Rights, all subject
to further adjustment as provided herein.

            (h)   Unless the Company shall have exercised its election as
provided in Section 11(i), upon each adjustment of the Purchase Price as a
result of the calculations made in Sections 11(b) and (c), each Right
outstanding immediately prior to the making of such adjustment shall thereafter
evidence the right to purchase, at the adjusted Purchase Price, that number of
Units of Preferred Stock (calculated to the nearest one-millionth of a share of
Preferred Stock) obtained by dividing (i) the product obtained by multiplying
(x) the number of Units of Preferred Stock covered by a Right immediately prior
to this adjustment by (y) the Purchase Price in effect immediately prior to such
adjustment of the Purchase Price by, (ii) the Purchase Price in effect
immediately after such adjustment of the Purchase Price.

            (i)   The Company may elect on or after the date of any adjustment
of the Purchase Price to adjust the number of Rights, in substitution for any
adjustment in the number of Units of Preferred Stock purchasable upon the
exercise of a Right. Each of the Rights outstanding after such adjustment of the
number of Rights shall be exercisable for the number of Units of Preferred Stock
for which a Right was exercisable immediately prior to such adjustment. Each
Right held of record prior to such adjustment of the number of Rights shall
become that number of Rights (calculated to the nearest one one-millionth)
obtained by dividing the Purchase Price in effect immediately prior to
adjustment of the Purchase Price by the Purchase Price in effect immediately
after adjustment of the Purchase Price. The Company shall make a public
announcement of its election to adjust the number of Rights, indicating the
record


                                      19.
<PAGE>   23
date for the adjustment, and, if known at the time, the amount of the adjustment
to be made. This record date may be the date on which the Purchase Price is
adjusted or any day thereafter, but, if the Rights Certificate have been issued,
shall be at least ten days later than the date of the public announcement. If
Rights Certificate have been issued, upon each adjustment of the number of
Rights pursuant to this Section 11(i), the Company shall, as promptly as
practicable, cause to be distributed to holders of record of Rights Certificate
on such record date Rights Certificate evidencing, subject to Section 14 hereof,
the additional Rights to which such holders shall be entitled as a result of
such adjustment, or, at the option of the Company, shall cause to be distributed
to such holders of record in substitution and replacement for the Rights
Certificate held by such holders prior to the date of adjustment, and upon
surrender thereof, if required by the Company, new Rights Certificate evidencing
all the Rights to which such holders shall be entitled after such adjustment.
Rights Certificate to be so distributed shall be issued, executed and
countersigned in the manner provided for herein and shall be registered in the
names of the holders of record of Rights Certificate on the record date
specified in the public announcement.

            (j)   Irrespective of any adjustment or change in the Purchase Price
or the number of Units of Preferred Stock issuable upon the exercise of the
Rights, the Rights Certificate theretofore and thereafter issued may continue to
express the Purchase Price per Unit and the number of Units of Preferred Stock
which were expressed in the initial Rights Certificate issued hereunder.

            (k)   Before taking any action that would cause an adjustment
reducing the Purchase Price below the then par value of the number of Units of
Preferred Stock issuable upon exercise of the Rights, the Company shall take any
corporate action which may, in the opinion of its counsel, be necessary in order
that the Company may validly and legally issue fully paid and nonassessable
number of Units of Preferred Stock at such adjusted Purchase Price.

            (l)   In any case in which this Section 11 shall require that an
adjustment in the Purchase Price be made effective as of a record date for a
specified event, the Company may elect to defer until the occurrence of such
event the issuing to the holder of any Rights exercised after such record date
of that number of Units of Preferred Stock and other capital stock or securities
of the Company, if any, issuable upon such exercise over and above the Units of
Preferred Stock and other capital stock or securities of the Company, if any,
issuable upon such exercise on the basis of the Purchase Price in effect prior
to such adjustment; provided, however, that the Company shall deliver to such
holder a due bill or other appropriate instrument evidencing such holder's right
to receive such additional shares (fractional or otherwise) upon the occurrence
of the event requiring such adjustment.

            (m)   Anything in this Section 11 to the contrary notwithstanding,
the Company shall be entitled to make such reductions in the Purchase Price, in
addition to those adjustments expressly required by this Section 11, as and to
the extent that it in its sole discretion shall determine to be advisable in
order that any (i) consolidation or subdivision of the Preferred Stock, (ii)
issuance wholly for cash of any Unit of Preferred Stock at less than the current
market price, (iii) issuance wholly for cash of Preferred Stock or securities
which by their terms are convertible


                                      20.
<PAGE>   24
into or exchangeable for Preferred Stock, (iv) dividends on Preferred Stock
payable in Preferred Stock or (v) issuance of rights, options or warrants
referred to in this Section 11, hereafter made by the Company to holders of
Units of its Preferred Stock shall not be taxable to such shareholders.

            (n)   The Company shall not, at any time after the Distribution
Date, (i) consolidate with any other Person (other than a Subsidiary of the
Company in a transaction which complies with Section 11(o)), (ii) merge with or
into any other Person (other than a Subsidiary of the Company in a transaction
which complies with Section 11(o)), or (iii) sell or transfer (or permit any
Subsidiary to sell or transfer), in one transaction, or a series of
transactions, assets or earning power aggregating more than 50% of the assets or
earning power of the Company and its Subsidiaries (taken as a whole) to any
other Person or Persons (other than the Company and/or any of its Subsidiaries
in one or more transactions each of which complies with Section 11(o)), if (x)
at the time of or immediately after such consolidation, merger or sale there are
any rights, warrants or other instruments or securities outstanding or
agreements in effect which would substantially diminish or otherwise eliminate
the benefits intended to be afforded by the Rights or (y) prior to,
simultaneously with or immediately after such consolidation, merger or sale, the
Person which constitutes, or would constitute the "Principal Party" for purposes
of Section 13(a) shall have distributed or otherwise transferred to its
shareholders or other persons holding an equity interest in such Person Rights
previously owned by such Person or any of its Affiliates and Associates;
provided, however, this Section 11(n) shall not affect the ability of any
Subsidiary of the Company to consolidate with, merge with or into, or sell or
transfer assets or earning power to, any other Subsidiary of the Company.

            (o)   After the Distribution Date, the Company shall not, except as
permitted by Section 23 or Section 26, take (or permit any Subsidiary to take)
any action if at the time such action is taken it is reasonably foreseeable that
such action will diminish substantially or otherwise eliminate the benefits
intended to be afforded by the Rights.

            (p)   In the event that, at any time after the date of this
Agreement and prior to the Distribution Date, the Company shall (i) declare or
pay any dividend on outstanding shares of Common Stock payable in shares of
Common Stock or (ii) effect a subdivision, combination or consolidation of the
Common Stock (by reclassification or otherwise than by payment of dividends in
shares of Common Stock) into a greater or lesser number of shares of Common
Stock, then in any such case the number of Units of Preferred Stock purchasable
after such event upon proper exercise of each Right shall be determined by
multiplying the number of Units of Preferred Stock so purchasable immediately
prior to such event by a fraction, the numerator of which is the number of
shares of Common Stock outstanding immediately before such event and the
denominator of which is the number of shares of Common Stock outstanding
immediately after such event. The adjustments provided for in this Section 11(p)
shall be made successively whenever such a dividend is declared or paid or such
a subdivision, combination or consolidation is effected.


                                      21.
<PAGE>   25
            Section 12. Articles of Adjusted Purchase Price or Number of Shares.
Whenever an adjustment is made as provided in Sections 11 and 13 hereof, the
Company shall promptly (a) prepare a certificate setting forth such adjustment,
and a brief statement of the facts accounting for such adjustment, (b) file with
the Rights Agent and with each transfer agent for the shares of Common Stock or
Units of Preferred Stock a copy of such certificate and (c) mail a brief summary
thereof to each holder of a Rights Certificate in accordance with Section 25
hereof. Notwithstanding the foregoing sentence, the failure by the Company to
make such certification or give such notice shall not affect the validity of or
the force or effect of the requirement for such adjustment. The Rights Agent
shall be fully protected in relying on any such certificate and on any
adjustment contained therein and shall not be deemed to have knowledge of such
adjustment unless and until it shall have received such certificate.

            Section 13. Consolidation, Merger or Sale or Transfer of Assets or
Earning Power.

            (a)   Except as provided in Section 13(b) hereof, in the event that,
following a Shares Acquisition Date, directly or indirectly, (x) the Company
shall consolidate with, or merge with and into, any other Person (other than a
Subsidiary of the Company in a transaction which complies with Section 11(o)),
and the Company shall not be the continuing or surviving corporation of such
consolidation or merger, (y) any Person (other than a Subsidiary of the Company
in a transaction which complies with Section 11(o)) shall consolidate with the
Company, or merge with and into the Company and the Company shall be the
continuing or surviving corporation of such consolidation or merger and, in
connection with such consolidation or merger, all or part of the shares of
Common Stock shall be changed into or exchanged for stock or other securities of
any other Person or cash or any other property, or (z) the Company shall sell or
otherwise transfer (or one or more of its Subsidiaries shall sell or otherwise
transfer) to any Person or Persons (other than a Subsidiary of the Company in a
transaction which complies with Section 11(o)), in one or more transactions,
directly or indirectly, assets or earning power aggregating 50% or more of the
assets or earning power of the Company and its Subsidiaries (taken as a whole),
(any such event being a "Section 13 Event"), then, and in each such case, proper
provision shall be made so that: (i) each holder of a Right, except as provided
in Section 7(e), shall thereafter have the right to receive, upon the exercise
thereof at the then current Purchase Price, such number of validly authorized
and issued, fully paid and non-assessable shares of Common Stock of the
Principal Party (as such term is hereinafter defined), which shares shall not be
subject to any liens, encumbrances, rights of first refusal, transfer
restrictions or other adverse claims, as shall be equal to the result obtained
by (1) multiplying the then current Purchase Price by the number of Units of
Preferred Stock for which a Right is exercisable immediately prior to the first
occurrence of a Section 13 Event (or, if a Section 11(a)(ii) Event has occurred
prior to the first occurrence of a Section 13 Event, multiplying the number of
such Units of Preferred Stock for which a Right would be exercisable hereunder
but for the occurrence of such Section 11(a)(ii) Event by the Purchase Price
which would be in effect hereunder but for such first occurrence) and (2)
dividing that product (which, following the direct occurrence of a Section 13
Event, shall be the "Purchase Price" for all purposes of this Agreement) by 50%
of the current per share market price (determined pursuant


                                      22.
<PAGE>   26
to Section 11(d)) of the shares of Common Stock of such Principal Party on the
date of consummation of such Section 13 Event; (ii) such Principal Party shall
thereafter be liable for, and shall assume, by virtue of such Section 13 Event,
all the obligations and duties of the Company pursuant to this Agreement; (iii)
the term "Company" shall, for all purposes of this Agreement, thereafter be
deemed to refer to such Principal Party, it being specifically intended that the
provisions of Section 11 shall apply only to such Principal Party following the
first occurrence of a Section 13 Event; (iv) such Principal Party shall take
such steps (including, but not limited to, the reservation of a sufficient
number of shares of its Common Stock) in connection with the consummation of any
such transaction as may be necessary to ensure that the provisions of this
Agreement shall thereafter be applicable to its shares of Common Stock
thereafter deliverable upon the exercise of the Rights; and (v) the provisions
of Section 11(a)(ii) shall be of no further effect following the first
occurrence of any Section 13 Event.

            (b)   "Principal Party" shall mean:

                  (i)   in the case of any transaction described in clause (x)
      or (y) of the first sentence of Section 13(a), (A) the Person that is the
      issuer of any securities into which shares of Company Common Stock are
      converted in such merger or consolidation, or, if there is more than one
      such issuer, the issuer of shares of Common Stock that has the highest
      aggregate current market price (determined pursuant to Section 11(d)) and
      (B) if no securities are so issued, the Person that is the other party to
      such merger or consolidation, or, if there is more than one such Person,
      the Person the Common Stock of which has the highest aggregate current
      market price (determined pursuant to Section 11(d)); and

                  (ii)  in the case of any transaction described in clause (z)
      of the first sentence of Section 13(a), the Person that is the party
      receiving the largest portion of the assets or earning power transferred
      pursuant to such transaction or transactions, or, if each Person that is a
      party to such transaction or transactions receives the same portion of the
      assets or earning power transferred pursuant to such transaction or
      transactions or if the Person receiving the largest portion of the assets
      or earning power cannot be determined, whichever Person the Common Stock
      of which has the highest aggregate current market price (determined
      pursuant to Section 11(d)); provided, however, that in any such case, (1)
      if the Common Stock of such Person is not at such time and has not been
      continuously over the preceding twelve-month period registered under
      Section 12 of the Exchange Act ("Registered Common Stock"), or such Person
      is not a corporation, and such Person is a direct or indirect Subsidiary
      of another Person that has Registered Common Stock outstanding, "Principal
      Party" shall refer to such other Person; (2) if the Common Stock of such
      Person is not Registered Common Stock or such Person is not a corporation,
      and such Person is a direct or indirect Subsidiary of another Person but
      is not a direct or indirect Subsidiary of another Person which has
      Registered Common Stock outstanding, "Principal Party" shall refer to the
      ultimate parent entity of such first-mentioned Person; (3) if the Common
      Stock of such Person is not Registered Common Stock or such Person is not
      a corporation, and such Person is directly or indirectly


                                      23.
<PAGE>   27
      controlled by more than one Person, and one or more of such other Persons
      has Registered Common Stock outstanding, "Principal Party" shall refer to
      whichever of such other Persons is the issuer of the Registered Common
      Stock having the highest aggregate current per share market price
      (determined pursuant to Section 11(d)); and (4) if the Common Stock of
      such Person is not Registered Common Stock or such Person is not a
      corporation, and such Person is directly or indirectly controlled by more
      than one Person, and none of such other Persons has Registered Common
      Stock outstanding, "Principal Party" shall refer to whichever ultimate
      parent entity is the corporation having the greatest shareholders' equity
      or, if no such ultimate parent entity is a corporation, shall refer to
      whichever ultimate parent entity is the entity having the greatest net
      assets.

            (c)   The Company shall not consummate any such consolidation,
merger, sale or transfer unless the Principal Party shall have a sufficient
number of authorized shares of Common Stock which have not been issued or
reserved for issuance to permit the exercise in full of the Rights in accordance
with this Section 13, and unless prior thereto the Company and such Principal
Party shall have executed and delivered to the Rights Agent a supplemental
agreement providing for the terms set forth in paragraphs (a) and (b) of this
Section 13 and further providing that the Principal Party will:

                  (i)   (A) file on an appropriate form, as soon as practicable
      following the execution of such agreement, a registration statement under
      the Securities Act with respect to the shares of Common Stock that may be
      acquired upon exercise of the Rights, (B) cause such registration
      statement to remain effective (and to include a prospectus complying with
      the requirements of the Securities Act) until the Expiration Date, and (C)
      as soon as practicable following the execution of such agreement take such
      action as may be required to ensure that any acquisition of such shares of
      Common Stock upon the exercise of the Rights complies with any applicable
      state securities or "blue sky" laws; and

                  (ii)  deliver to holders of the Rights historical financial
      statements for the Principal Party and each of its Affiliates which comply
      in all respects with the requirements for registration on Form 10 under
      the Exchange Act.

            (d)   In case the Principal Party which is to be a party to a
transaction referred to in this Section 13 has a provision in any of its
authorized securities or in its Articles of Incorporation or Bylaws or other
instrument governing its corporate affairs, which provision would have the
effect of (i) causing such Principal Party to issue, in connection with, or as a
consequence of, the consummation of a transaction referred to in this Section
13, shares of Common Stock of such Principal Party at less than the then current
market price per share (determined pursuant to Section 11(d)) or securities
exercisable for, or convertible into, shares of Common Stock of such Principal
Party at less than such then current marker price (other than to holders of
Rights pursuant to this Section 13) or (ii) providing for any special payment,
tax or similar provisions in connection with the issuance of the shares of
Common Stock of such Principal Party pursuant to the provisions of this Section
13, then, in such event, the Company shall not consummate any such transaction
unless prior thereto the Company and such Principal


                                      24.
<PAGE>   28
Party shall have executed and delivered to the Rights Agent a supplemental
agreement providing that the provision in question of such Principal Party shall
have been cancelled, waived or amended, or that the authorized securities shall
be redeemed, so that the applicable provision will have no effect in connection
with, or as a consequence of, the consummation of the proposed transaction.

            (e)   The provisions of this Section 13 shall similarly apply to
successive mergers or consolidations or sales or other transfers. In the event
that a Section 13 Event shall occur at any time after the occurrence of a
Section 11(a)(ii) Event, the Rights which have not theretofore been exercised
shall thereafter become exercisable in the manner described in Section 13(a).

            Section 14. Fractional Rights and Fractional Shares.

            (a)   The Company shall not be required to issue fractions of Rights
or to distribute Rights Certificate which evidence fractional Rights. In lieu of
such fractional Rights, there shall be paid to the registered holders of the
Rights Certificate with regard to which such fractional Rights would otherwise
be issuable, an amount in cash equal to the same fraction of the current market
value of a whole Right. For the purposes of this Section 14(a), the current
market value of a whole Right shall be the closing price of the Rights for the
Trading Day immediately prior to the date on which such fractional Rights would
have been otherwise issuable. The closing price for any day shall be the last
sale price, regular way, or, in case no such sale takes place on such day, the
average of the closing bid and asked prices, regular way, in either case as
reported in the principal consolidated transaction reporting system with respect
to securities listed or admitted to trading on the NASDAQ or, if the Rights are
not listed or admitted to trading on the NASDAQ, as reported in the principal
consolidated transaction reporting system with respect to securities listed on
the principal national securities exchange on which the Rights are listed or
admitted to trading or, if the Rights are not listed or admitted to trading on
any national securities exchange, the last quoted price or, if not so quoted,
the average of the high bid and low asked prices in the over-the-counter market,
as reported by NASDAQ or such other system then in use or, if on any such date
the Rights are not quoted by any such organization, the average of the closing
bid and asked prices as furnished by a professional market maker making a market
in the Rights selected by the Directors. If on any such date no such market
maker is making a market in the Rights, the fair value of the Rights on such
date as determined in good faith by the Board of Directors of the Company, upon
approval by a majority of the Continuing Directors, shall be used.

            (b)   The Company shall not be required to issue fractions of
Preferred Stock (other than fractions which are integral multiples of one
ten-thousandth of a share of Preferred Stock) upon exercise of the Rights or to
distribute certificates which evidence fractional Preferred Stock (other than
fractions which are integral multiples of one ten-thousandth of a share of
Preferred Stock). Fractions of Preferred Stock in integral multiples of one
ten-thousandth of a share of Preferred Stock may, at the election of the
Company, be evidenced by depositary receipts, pursuant to an appropriate
agreement between the Company and a depositary selected


                                      25.
<PAGE>   29
by it; provided, however, that such agreement shall provide that the holders of
such depositary receipts shall have all the rights, privileges and preferences
to which they are entitled as beneficial owners of the Preferred Stock
represented by such depositary receipts. In lieu of fractional shares of
Preferred Stock that are not integral multiples of one ten-thousandth of a share
of Preferred Stock, the Company shall pay to the registered holders of Rights
Certificate at the time such Rights are exercised as herein provided an amount
in cash equal to the same fraction of the current market value of one a share of
Preferred Stock as determined pursuant to Section 11(d).

            (c)   The holder of a Right by the acceptance of the Right expressly
waives such holder's right to receive any fractional Rights or any fractional
shares upon exercise of a Right (except as provided above).

            Section 15. Rights of Action. All rights of action in respect of
this Agreement, excepting the rights of action given to the Rights Agent under
Section 18 hereof, are vested in the respective registered holders of the Rights
Certificate (and, prior to the Distribution Date, the registered holders of
certificates representing shares of Common Stock); and any registered holder of
any Rights Certificate (or, prior to the Distribution Date, a certificate
representing shares of Common Stock), without the consent of the Rights Agent or
of the holder of any other Rights Certificate (or, prior to the Distribution
Date, of a certificate representing shares of Common Stock), may, in such
holder's own behalf and for such holder's own benefit, enforce, and may
institute and maintain any suit, action or proceeding against the Company to
enforce, or otherwise act in respect of, such holder's right to exercise the
Rights evidenced by such Rights Certificate in the manner provided in such
Rights Certificate and in this Agreement. Without limiting the foregoing or any
remedies available to the holders of Rights, it is specifically acknowledged
that the holders of Rights would not have an adequate remedy at law for any
breach of this Agreement and will be entitled to specific performance of the
obligations hereunder, and injunctive relief against actual or threatened
violations of the obligations of any Person subject to this Agreement.

            Section 16. Agreement of Rights Holders. Every holder of a Right, by
accepting the same, consents and agrees with the Company and the Rights Agent
and with every other holder of a Right that:

            (a)   prior to the Distribution Date, the Rights will be
transferable only in connection with the transfer of shares of the Company's
Common Stock;

            (b)   after the Distribution Date, the Rights Certificate are
transferable only on the registry books of the Rights Agent if surrendered at
the office of the Rights Agent designated for such purpose, duly endorsed or
accompanied by a proper instrument of transfer;

            (c)   subject to Sections 6(a) and 7(f) hereof, the Company and the
Rights Agent may deem and treat the person in whose name the Rights Certificate
(or, prior to the Distribution Date, the associated Common Stock certificate) is
registered as the absolute owner thereof and


                                      26.
<PAGE>   30
of the Rights evidenced thereby (notwithstanding any notations of ownership or
writing on the Rights Certificate or the associated Common Stock certificate
made by anyone other than the Company or the Rights Agent) for all purposes
whatsoever, and neither the Company nor the Rights Agent shall be affected by
any notice to the contrary; and

            (d)   notwithstanding anything in this Agreement to the contrary,
neither the Company nor the Rights Agent shall have any liability to any holder
of a Right or other Person as a result of its inability to perform any of its
obligations under this Agreement by reason of any preliminary or permanent
injunction or other order, decree or ruling issued by a court of competent
jurisdiction or by a governmental, regulatory or administrative agency or
commission, or any statute, rule, regulation or executive order promulgated or
enacted by any governmental authority, prohibiting or otherwise restraining
performance of such obligation; provided, however, the Company must use its best
efforts to have any such order, decree or ruling lifted or otherwise overturned
as soon as possible.

            Section 17. Rights Certificate Holder Not Deemed a Shareholder. No
holder, as such, of any Rights Certificate shall be entitled to vote, receive
dividends or be deemed for any purpose the holder of the Units of Preferred
Stock or any other securities of the Company which may at any time be issuable
upon the exercise of the Rights represented thereby, nor shall anything
contained herein or in any Rights Certificate be construed to confer upon the
holder of any Rights Certificate, as such, any of the rights of a shareholder of
the Company or any right to vote for the election of directors or upon any
matter submitted to shareholders at any meeting thereof, or to give or withhold
consent to any corporate action, or to receive notice of meetings or other
actions affecting shareholders (except as provided in Section 25 hereof), or to
receive dividends or subscription rights, or otherwise, until the Right or
Rights evidenced by such Rights Certificate shall have been exercised in
accordance with the provisions hereof.

            Section 18. Concerning the Rights Agent. The Company agrees to pay
to the Rights Agent reasonable compensation for all services rendered by it
hereunder and, from time to time, on demand of the Rights Agent, its reasonable
expenses and counsel fees and other disbursements incurred in the administration
and execution of this Agreement and the exercise and performance of its duties
hereunder. The Company also agrees to indemnify the Rights Agent for, and to
hold it harmless against, any loss, liability, or expense, incurred without
gross negligence, or willful misconduct on the part of the Rights Agent, for any
action taken, suffered or omitted by the Rights Agent in connection with the
execution, acceptance and administration of this Agreement and the exercise and
performance hereunder of its duties, including the costs and expenses of
defending against and appealing any claim of liability in the premises. The
indemnity provided herein shall survive the termination of this Agreement and
the expiration of the Rights. The costs and expenses incurred in enforcing this
right of indemnification shall be paid by the Company.

            The Rights Agent may conclusively rely upon and shall be protected
and shall incur no liability for, or in respect of any action taken, suffered or
omitted by it in connection with, its administration of this Agreement and the
exercise and performance of its duties


                                      27.
<PAGE>   31
hereunder in reliance upon any Rights Certificate or certificate for Units of
Preferred Stock or shares of Common Stock or for other securities of the
Company, instrument of assignment or transfer, power of attorney, endorsement,
affidavit, letter, notice, direction, consent, certificate, statement, or other
paper or document believed by it to be genuine and to be signed, executed and,
where necessary, verified or acknowledged, by the proper person or persons, or
otherwise upon the advice of counsel as set forth in Section 20 hereof.

            Section 19. Merger or Consolidation or Change of Name of Rights
Agent.

            (a)   Any corporation into which the Rights Agent or any successor
Rights Agent may be merged or with which it may be consolidated, or any
corporation resulting from any merger or consolidation to which the Rights Agent
or any successor Rights Agent shall be a party, or any corporation succeeding to
the stock transfer or corporate trust business of the Rights Agent or any
successor Rights Agent, shall be the successor to the Rights Agent under this
Agreement without the execution or filing of any paper or any further act on the
part of any of the parties hereto, provided that such corporation would be
eligible for appointment as a successor Rights Agent under the provisions of
Section 21 hereof. In case at the time such successor Rights Agent shall succeed
to the agency created by this Agreement any of the Rights Certificate shall have
been countersigned but not delivered, any such successor Rights Agent may adopt
the countersignature of the predecessor Rights Agent and deliver such Rights
Certificate so countersigned; and in case at that time any of the Rights
Certificate shall not have been countersigned, any successor Rights Agent may
countersign such Rights Certificate either in the name of the predecessor Rights
Agent or in the name of the successor Rights Agent; and in all such cases such
Rights Certificate shall have the full force provided in the Rights Certificate
and in this Agreement.

            (b)   In case at any time the name of the Rights Agent shall be
changed and at such time any of the Rights Certificate shall have been
countersigned but not delivered, the Rights Agent may adopt the countersignature
under its prior name and deliver Rights Certificate so countersigned; and in
case at that time any of the Rights Certificate shall not have been
countersigned, the Rights Agent may countersign such Rights Certificate either
in its prior name or in its changed name; and in all such cases such Rights
Certificate shall have the full force provided in the Rights Certificate and in
this Agreement.

            Section 20. Duties of Rights Agent. The Rights Agent undertakes the
duties and obligations imposed by this Agreement upon the following terms and
conditions and no implied duties or obligations shall be read into this
Agreement against the Rights Agent, by all of which the Company and the holders
of Rights Certificate, by their acceptance thereof, shall be bound:

            (a)   Before the Rights Agent acts or refrains from acting, it may
consult with legal counsel of its choice (who may be legal counsel for the
Company), and the advice or opinion of such counsel shall be full and complete
authorization and protection to the Rights Agent as to any action taken,
suffered or omitted by it in good faith and in accordance with such advice or
opinion.


                                      28.
<PAGE>   32
            (b)   Whenever in the administration, exercise and performance of
its duties under this Agreement the Rights Agent shall deem it necessary or
desirable that any fact or matter be proved or established by the Company prior
to taking, suffering or omitting any action hereunder, such fact or matter
(unless other evidence in respect thereof be herein specifically prescribed) may
be deemed to be conclusively proved and established by a certificate signed by
any one of the Chairman of the Board, the Chief Executive Officer, the
President, any Vice President, the Treasurer or the Secretary of the Company and
delivered to the Rights Agent; and such certificate shall be full authorization
to the Rights Agent for any action taken, suffered or omitted in good faith by
it under the provisions of this Agreement in reliance upon such certificate.

            (c)   The Rights Agent shall be liable hereunder to the Company and
any other Person only for its own gross negligence or willful misconduct.

            (d)   The Rights Agent shall not be liable for or by reason of any
of the statements of fact or recitals contained in this Agreement or in the
Rights Certificate (except its countersignature thereof) or be required to
verify the same, but all such statements and recitals are and shall be deemed to
have been made by the Company only.

            (e)   The Rights Agent shall not be under any liability or
responsibility in respect of the legality, validity or enforceability of this
Agreement or the execution and delivery hereof (except the due execution hereof
by the Rights Agent) or in respect of the legality, validity or enforceability
or the execution of any Rights Certificate (except its countersignature thereof
and has actual knowledge of such change or adjustment); nor shall it be liable
or responsible for any breach by the Company of any covenant or condition
contained in this Agreement or in any Rights Certificate; nor shall it be
responsible for any change in the exercisability of the Rights (including the
Rights becoming void pursuant to Section 11(a)(ii) hereof) or any adjustment in
the terms of the Rights (including the manner, method or amount thereof)
provided for in Section 3, 11, 13, 23 or 24, or the ascertaining of the
existence of facts that would require any such change or adjustment (except with
respect to the exercise of Rights evidenced by Rights Certificate after receipt
of the certificate described in Section 12 hereof or has actual knowledge of
such change or adjustment); nor shall it by any act hereunder be deemed to make
any representation or warranty as to the authorization or reservation of any
Units of Preferred Stock to be issued pursuant to this Agreement or any Rights
Certificate or as to whether any Preferred Stock will, when issued, be validly
authorized and issued, fully paid and nonassessable.

            (f)   The Company agrees that it will perform, execute, acknowledge
and deliver or cause to be performed, executed, acknowledged and delivered all
such further and other acts, instruments and assurances as may reasonably be
required by the Rights Agent for the carrying out or performing by the Rights
Agent of the provisions of this Agreement.

            (g)   The Rights Agent is hereby authorized and directed to accept
instructions with respect to the administration, exercise and performance of its
duties hereunder from any one of the Chairman of the Board, the Chief Executive
Officer, the President, any Vice President, the Secretary or the Treasurer of
the Company, and to apply to such officers for advice or instruc-


                                      29.
<PAGE>   33
tions in connection with its duties, and it shall not be responsible or liable
for any action taken, suffered or omitted by it in good faith in accordance with
instructions of any such officer or for any delay in acting while waiting for
those instructions. Any application by the Rights Agent for written instructions
from the Company may, at the option of the Rights Agent, set forth in writing
any action proposed to be taken or omitted by the Rights Agent under this Rights
Agreement and the date on and/or after which such action shall be taken or such
omission shall be effective. The Rights Agent shall not be liable for any action
taken by, or omission of, the Rights Agent in accordance with a proposal
included in any such application on or after the date specified in such
application (which date shall not be less than five (5) Business Days after the
date any officer of the Company actually received such application, unless any
such officer shall have consented in writing to an earlier date) unless, prior
to taking any such action (or the effective date in the case of an omission),
the Rights Agent shall have received written instructions in response to such
application specifying the action to be taken or omitted.

            (h)   The Rights Agent and any shareholder, director, officer or
employee of the Rights Agent may buy, sell or deal in any of the Rights or other
securities of the Company or become pecuniarily interested in any transaction in
which the Company may be interested, or contract with or lend money to the
Company or otherwise act as fully and freely as though it were not Rights Agent
under this Agreement. Nothing herein shall preclude the Rights Agent from acting
in any other capacity for the Company or for any other legal entity.

            (i)   The Rights Agent may execute and exercise any of the rights or
powers hereby vested in it or perform any duty hereunder either itself or by or
through its attorneys or agents, and the Rights Agent shall not be answerable or
accountable for any act, default, neglect or misconduct of any such attorneys or
agents or for any loss to the Company resulting from any such act, default,
neglect or misconduct, provided reasonable care was exercised in the selection
and continued employment thereof.

            (j)   No provision of this Agreement shall require the Rights Agent
to expend or risk its own funds or otherwise incur any financial liability in
the performance of any of its duties hereunder or in the exercise of its rights
if the Rights Agent in good faith believes that repayment of such funds or
adequate indemnification against such risk or liability is not reasonably
assured to it.

            (k)   If, with respect to any Rights Certificate surrendered to the
Rights Agent for exercise, transfer, split up, combination or exchange, the
certification on the form of assignment or form of election to purchase, as the
case may be, that the Rights evidenced by the Rights Certificate are not owned
by an Acquiring Person, or an Affiliate or Associate thereof, has either not
been completed or in any manner indicates any other response thereto, the Rights
Agent shall not take any further action with respect to such requested exercise,
transfer, split up, combination or exchange, without first consulting with the
Company.

            Section 21. Change of Rights Agent. The Rights Agent or any
successor Rights Agent may resign and be discharged from its duties under this
Agreement upon thirty (30) days'


                                      30.
<PAGE>   34
notice in writing mailed to the Company and to each transfer agent of the Common
Stock or Preferred Stock (as to which the Rights Agent has received prior
written notice) by registered or certified mail, and the Company shall mail
notice thereof to the holders of the Rights Certificate by first-class mail. The
Company may remove the Rights Agent or any successor Rights Agent upon thirty
(30) days' notice in writing, mailed to the Rights Agent or successor Rights
Agent, as the case may be, and to each transfer agent of the Common Stock or
Preferred Stock (as to which the Rights Agent has received prior written notice)
by registered or certified mail, and to the holders of the Rights Certificate by
first-class mail. If the Rights Agent shall resign or be removed or shall
otherwise become incapable of acting, the Company shall appoint a successor to
the Rights Agent. If the Company shall fail to make such appointment within a
period of thirty (30) days after giving notice of such removal or after it has
been notified in writing of such resignation or incapacity by the resigning or
incapacitated Rights Agent or by the holder of a Rights Certificate (who shall,
with such notice, submit such holder's Rights Certificate for inspection by the
Company), then the registered holder of any Rights Certificate may apply to any
court of competent jurisdiction for the appointment of a new Rights Agent. Any
successor Rights Agent, whether appointed by the Company or by such a court,
shall be a corporation organized and doing business under the laws of the United
States or of any state of the United States, in good standing, authorized under
such laws to exercise corporate trust or stock transfer powers, and subject to
supervision or examination by federal or state authority and which has at the
time of its appointment as Rights Agent a combined capital and surplus of at
least $50 million. After appointment, the successor Rights Agent shall be vested
with the same powers, rights, duties and responsibilities as if it had been
originally named as Rights Agent without further act or deed; but the
predecessor Rights Agent shall deliver and transfer to the successor Rights
Agent any property at the time held by it hereunder, and execute and deliver any
further assurance, conveyance, act or deed necessary for the purpose. Not later
than the effective date of any such appointment the Company shall file notice
thereof in writing with the predecessor Rights Agent and each transfer agent of
the Common Stock or Preferred Stock, and mail a notice thereof in writing to the
registered holders of the Rights Certificate. Failure to give any notice
provided for in this Section 21, however, or any defect therein, shall not
affect the legality or validity of the resignation or removal of the Rights
Agent or the appointment of the successor Rights Agent, as the case may be.

            Section 22. Issuance of New Rights Certificate. Notwithstanding any
of the provisions of this Agreement or of the Rights to the contrary, the
Company may, at its option, issue new Rights Certificate evidencing Rights in
such form as may be approved by its Board of Directors upon approval by a
majority of the Continuing Directors, to reflect any adjustment or change in the
Purchase Price and the number or kind or class of shares or other securities or
property purchasable under the Rights Certificate made in accordance with the
provisions of this Agreement. In addition, in connection with the issuance or
sale of shares of Common Stock following the Distribution Date and prior to the
Expiration Date, the Company (a) shall, with respect to shares of Common Stock
so issued or sold pursuant to the exercise of stock options or under any
employee benefit plan or arrangement or upon the exercise, conversion or
exchange of securities of the Company currently outstanding or issued at any
time in the future by the Company and (b) may, in any other case, if deemed
necessary or appropriate by the Board of


                                      31.
<PAGE>   35
Directors of the Company, upon approval by a majority of the Continuing
Directors, issue Rights Certificate representing the appropriate number of
Rights in connection with such issuance or sale; provided, however, that (i) no
such Rights Certificate shall be issued and this sentence shall be null and void
ab initio if, and to the extent that, such issuance or this sentence would
create a significant risk of or result in material adverse tax consequences to
the Company or the Person to whom such Rights Certificate would be issued or
would create a significant risk of or result in such options' or employee plans'
or arrangements' failing to qualify for otherwise available special tax
treatment and (ii) no such Rights Certificate shall be issued if, and to the
extent that, appropriate adjustment shall otherwise have been made in lieu of
the issuance thereof.

            Section 23. Redemption and Termination.

            (a)   The Company may, at its option, upon approval by a majority of
the Continuing Directors, at any time prior to the earlier of (i) the Shares
Acquisition Date or (ii) the Final Expiration Date redeem all but not less than
all the then outstanding Rights at a redemption price of $0.001 per Right,
appropriately adjusted to reflect any stock split, stock dividend or similar
transaction occurring after the date hereof (such redemption price being
hereinafter referred to as the "Redemption Price"), and the Company may, at its
option, pay the Redemption Price either in cash, shares of Common Stock (based
on the current per share market price thereof (as determined pursuant to Section
11(d) hereof) at the time of redemption), or any other form of consideration
deemed appropriate by the Board of Directors; provided, however, that,
notwithstanding anything to the contrary contained in this Section 23(a), the
Company may not take any action pursuant to this Section 23(a) unless (x) at the
time of the action of the Board of Directors of the Company approving such
redemption and the form of payment of the Redemption Price, there are then in
office not less than two Continuing Directors and (y) such action is approved by
a majority of the Continuing Directors then in office. The redemption of the
Rights by the Board of Directors may be made effective at such time on such
basis and with such conditions as a majority of the Continuing Directors in its
sole discretion may establish.

            (b)   Immediately upon the action of a majority of the Continuing
Directors of the Company ordering the redemption of the Rights pursuant to
paragraph (a) of this Section 23, and without any further action and without any
notice, the right to exercise the Rights will terminate and the only right
thereafter of the holders of Rights shall be to receive the Redemption Price.
The Company shall promptly give public notice of any such redemption; provided,
however, that the failure to give, or any defect in, any such notice shall not
affect the validity of such redemption. Within 10 days after such action of a
majority of the Continuing Directors ordering the redemption of the Rights, the
Company shall give notice of such redemption to the Rights Agent and shall mail
a notice of redemption to all the holders of the then outstanding Rights at
their last addresses as they appear upon the registry books of the Rights Agent
or, prior to the Distribution Date, on the registry books of the transfer agent
for the Common Stock. Any notice which is mailed in the manner herein provided
shall be deemed given, whether or not the holder receives the notice. Each such
notice of redemption will state the method by which the payment of the
Redemption Price will be made. Neither the Company nor any of its Affiliates or
Associates may redeem, acquire or purchase for value any Rights at any time in
any manner


                                      32.
<PAGE>   36
other than that specifically set forth in this Section 23 or in Section 24
hereof, and other than in connection with the purchase of shares of Common Stock
prior to the Distribution Date.

            (c)   Notwithstanding anything contained in this Agreement to the
contrary, the Rights shall not be exercisable pursuant to Section 7(a) at any
time when the Rights are redeemable hereunder.

            Section 24. Exchange.

            (a)   The Company, at its option, upon approval by a majority of the
Continuing Directors, at any time after any Person becomes an Acquiring Person,
may exchange all or part of the then outstanding and exercisable Rights (which
shall not include Rights that have become void pursuant to the provisions of
Section 7(e) hereof) for Units of Preferred Stock at an exchange ratio equal to,
subject to adjustment to reflect stock splits, stock dividends and similar
transactions occurring after the date hereof, that number obtained by dividing
the Purchase Price by the then current per share market price per Unit of
Preferred Stock on the earlier of (i) the date on which any Person becomes an
Acquiring Person and (ii) the date on which a tender or exchange offer by any
Person (other than the Company, any Subsidiary of the Company, any employee
benefit plan maintained by the Company or any of its Subsidiaries or any trustee
or fiduciary with respect to such plan acting in such capacity) is first
published or sent or given within the meaning of Rule 14d-4(a) of the Exchange
Act Regulations or any successor rule, if upon consummation thereof such Person
would be the Beneficial Owner of 15% or more of the shares of Common Stock then
outstanding (such exchange ratio being hereinafter referred to as the "Section
24(a) Exchange Ratio"). Notwithstanding the foregoing, the Company may not
effect such exchange at any time after any Person (other than the Company, any
Subsidiary of the Company, any employee benefit plan maintained by the Company
or any of its Subsidiaries, or any trustee or fiduciary with respect to such
plan acting in such capacity), together with all Affiliates and Associates of
such Person, becomes the Beneficial Owner of 50% or more of the shares of Common
Stock then outstanding.

            (b)   Immediately upon the action of the Board of Directors of the
Company ordering the exchange of any Rights pursuant to subsection (a) of this
Section 24 and without any further action and without any notice, the right to
exercise such Rights shall terminate and the only right thereafter of a holder
of such Rights shall be to receive that number of Units of Preferred Stock equal
to the number of such Rights held by such holder multiplied by the Section 24(a)
Exchange Ratio. The Company shall promptly give public notice of any such
exchange; provided, however, that the failure to give, or any defect in, such
notice shall not affect the validity of such exchange. The Company promptly
shall mail a notice of any such exchange to all of the holders of such Rights at
their last addresses as they appear upon the registry books of the Rights Agent.
Any notice which is mailed in the manner herein provided shall be deemed given,
whether or not the holder receives the notice. Each such notice of exchange will
state the method by which the exchange of Units of Preferred Stock for Rights
will be effected and, in the event of any partial exchange, the number of Rights
which will be exchanged. Any partial


                                      33.
<PAGE>   37
exchange shall be effected pro rata based on the number of Rights (other than
Rights which have become void pursuant to the provisions of Section 7(e) hereof)
held by each holder of Rights.

            (c)   In the event that the number of shares of Preferred Stock
which are authorized by the Company's Restated Articles of Incorporation but not
outstanding or reserved for issuance for purposes other than upon exercise of
the Rights are not sufficient to permit any exchange of Rights as contemplated
in accordance with this Section 24, the Company shall take all such action as
may be necessary to authorize additional shares of Preferred Stock for issuance
upon exchange of the Rights or make adequate provision to substitute (1) cash,
(2) Company Common Stock or other equity securities of the Company, (3) debt
securities of the Company, (4) other assets, or (5) any combination of the
foregoing, having an aggregate value equal to the Adjustment Spread, where such
aggregate value has been determined by a majority of the Continuing Directors.

            (d)   The Company shall not be required to issue fractions smaller
than or to distribute certificates which evidence fractions smaller than one
ten-thousandth of a share of Preferred Stock. In lieu thereof, the Company shall
pay to the registered holders of the Rights Certificate with regard to which
such fractional Units would otherwise be issuable an amount in cash equal to the
same fraction of the current market value (as determined pursuant to Section
11(d)(i) hereof) of one Unit of Preferred Stock.

            Section 25. Notice of Certain Events.

            (a)   In case the Company shall propose (i) to pay any dividend
payable in stock of any class to the holders of its Preferred Stock or to make
any other distribution to the holders of its Preferred Stock (other than a
regular quarterly cash dividend), (ii) to offer to the holders of its Preferred
Stock rights or warrants to subscribe for or to purchase any additional Units of
Preferred Stock or shares of stock of any class or any other securities, rights
or options, (iii) to effect any reclassification of its Preferred Stock (other
than a reclassification involving only the subdivision of outstanding Preferred
Stock), (iv) to effect any consolidation or merger into or with any other Person
(other than a Subsidiary of the Company in a transaction which complies with
Section 11(o)), or to effect any sale or other transfer (or to permit one or
more of its Subsidiaries to effect any sale or other transfer), in one or more
transactions, of 50% or more of the assets or earning power of the Company and
its Subsidiaries (taken as a whole) to, any other Person, (v) to effect the
liquidation, dissolution or winding up of the Company, or (vi) to declare or pay
any dividend on the Common Stock payable in shares of Common Stock or to effect
a subdivision, combination or consolidation of the shares of Common Stock (by
reclassification or otherwise than by payment of dividends in shares of Common
Stock), then, in each such case, the Company shall give to each holder of a
Rights Certificate, in accordance with Section 26 hereof, a notice of such
proposed action, which shall specify the record date for the purposes of such
stock dividend, or distribution of rights or warrants, or the date on which such
reclassifica- tion, consolidation, merger, sale, transfer, liquidation,
dissolution, or winding up is to take place and the date of participation
therein by the holders of the shares of Common Stock and/or shares of Preferred
Stock, if any such date is to be fixed, and such notice shall be so given in the
case


                                      34.
<PAGE>   38
of any action covered by clause (i) or (ii) above at least ten (10) days prior
to the record date for determining holders of the shares of Preferred Stock for
purposes of such action, and in the case of any such other action, at least ten
(10) days prior to the date of the taking of such proposed action or the date of
participation therein by the holders of the shares of Common Stock and/or shares
of Preferred Stock, whichever shall be the earlier.

            (b)   In case any of the events set forth in Section 11(a)(ii)
hereof shall occur, then the Company shall as soon as practicable thereafter
give to each holder of a Rights Certificate, in accordance with Section 26
hereof, a notice of the occurrence of such event, which notice shall describe
such event and the consequences of such event to holders of Rights under Section
11(a)(ii) hereof. In the event any Person becomes an Acquiring Person, the
Company will promptly notify the Rights Agent thereof.

            Section 26. Notices. Notices or demands authorized by this Agreement
to be given or made by the Rights Agent or by the holder of any Rights
Certificate to or on the Company shall be sufficiently given or made if sent by
first-class mail, postage prepaid, addressed (until another address is filed in
writing with the Rights Agent) as follows:

            Cisco Systems, Inc.
            170 West Tasman Drive
            San Jose, CA  95134-1706

            Attention:  Vice President Legal and
                        Governmental Affairs

Subject to the provisions of Section 21 hereof, any notice or demand authorized
by this Agreement to be given or made by the Company or by the holder of any
Rights Certificate to or on the Rights Agent shall be sent by registered or
certified mail and shall be deemed given upon receipt and addressed (until
another address is filed in writing with the Company) as follows:

            Bank Boston, N.A.
            c/o Boston EquiServe Limited Partnership
            150 Royall Street
            Canton, MA  02021

            Attention:  Client Administration

Notices or demands authorized by this Agreement to be given or made by the
Company or the Rights Agent to the holder of any Rights Certificate shall be
sufficiently given or made if sent by first-class mail, postage prepaid,
addressed to such holder at the address of such holder as shown on the registry
books of the Company.


                                      35.
<PAGE>   39
            Section 27. Supplements and Amendments. Prior to the Distribution
Date, the Company may supplement or amend this Agreement in any respect, without
the approval of any holders of Rights, by action of its Board of Directors, upon
approval by a majority of the Continuing Directors, and the Rights Agent shall,
if the Company so directs, execute such supplement or amendment. From and after
the Distribution Date, the Company may from time to time supplement or amend
this Agreement without the approval of any holders of Rights, by action of its
Board of Directors, upon approval by a majority of the Continuing Directors, in
order (i) to cure any ambiguity, (ii) to correct or supplement any provision
contained herein which may be defective or inconsistent with any other
provisions herein, (iii) to shorten or lengthen any time period hereunder or
(iv) to change or supplement the provisions hereunder in any manner which the
Company may deem necessary or desirable and which shall not adversely affect the
interests of the holders of Rights Certificate (other than an Acquiring Person
or an Affiliate or Associate of an Acquiring Person), including, without
limitation, to change the Purchase Price, the Redemption Price, any time periods
herein specified, and any other term hereof, any such supplement or amendment to
be evidenced by a writing signed by the Company and the Rights Agent; provided,
however, that from and after such time as any Person becomes an Acquiring
Person, this Agreement shall not be amended in any manner which would adversely
affect the interests of the holders of Rights. Upon receipt of a certificate
from an appropriate officer of the Company that the proposed supplement or
amendment is consistent with this Section 27 and, after such time as any Person
has become an Acquiring Person, that the proposed supplement or amendment does
not adversely affect the interests of the holders of Rights, the Rights Agent
shall execute such supplement or amendment.

            Section 28. Successors. All the covenants and provisions of this
Agreement by or for the benefit of the Company or the Rights Agent shall bind
and inure to the benefit of their respective successors and assigns hereunder.

            Section 29. Determinations and Actions by the Board of Directors.

            (a)   For all purposes of this Agreement, any calculation of the
number of shares of Common Stock outstanding at any particular time, including
for purposes of determining the particular percentage of such outstanding shares
of Common Stock of which any Person is the Beneficial Owner, shall be made in
accordance with the last sentence of Rule 13d-3(d)(1)(i) of the Exchange Act.
The Board of Directors of the Company shall have the exclusive power and
authority to administer this Agreement and to exercise all rights and powers
specifically granted to the Board of Directors, or the Company, or as may be
necessary or advisable in the administration of this Agreement, including,
without limitation, the right and power to (i) interpret the provisions of this
Agreement and (ii) make all determinations deemed necessary or advisable for the
administration of this Agreement (including a determination to redeem or not
redeem the Rights or to amend the Agreement). All such actions, calculations,
interpretations and determinations (including, for purposes of clause (y) below,
all omissions with respect to the foregoing), which are done or made by the
Board of Directors in good faith, shall (x) be final, conclusive and binding on
the Company, the Rights Agent, the holders of the Rights Certificate


                                      36.
<PAGE>   40
and all other parties and (y) not subject the Board of Directors or the
Continuing Directors to any liability to the holders of the Rights.

            (b)   Notwithstanding anything to the contrary contained in this
Agreement, the concurrence of a majority of the Continuing Directors then in
office shall be required to give effect to any action, calculation,
interpretation or determination made by the Board of Directors of the Company in
the administration of this Agreement and the exercise of the rights or powers
granted to the Board of Directors of the Company, to the Continuing Directors or
to the Company pursuant to this Agreement and no effect shall be given to any
such action, calculation, interpretation, determination or exercise of rights or
powers unless at least two Continuing Directors are then in office.

            Section 30. Benefits of This Agreement. Nothing in this Agreement
shall be construed to give to any person or corporation other than the Company,
the Rights Agent and the registered holders of the Rights Certificate (and,
prior to the Distribution Date, shares of Common Stock) any legal or equitable
right, remedy or claim under this Agreement; but this Agreement shall be for the
sole and exclusive benefit of the Company, the Rights Agent and the registered
holders of the Rights Certificate (and, prior to the Distribution Date, shares
of Common Stock).

            Section 31. Severability. If any term, provision, covenant or
restriction of this Agreement is held by a court of competent jurisdiction or
other authority to be invalid, void or unenforceable, the remainder of the
terms, provisions, covenants and restrictions of this Agreement shall remain in
full force and effect and shall in no way be affected, impaired or invalidated;
provided, however, that notwithstanding anything in this Agreement to the
contrary, if any such term, provision, covenant or restriction is held by such
court or authority to be invalid, void or unenforceable and the Board of
Directors of the Company, upon approval by a majority of the Continuing
Directors, determines in its good faith judgment that severing the invalid
language from this Agreement would adversely affect the purpose or effect of
this Agreement, the right of redemption set forth in Section 23 hereof shall be
reinstated and shall not expire until the tenth Business Day following the date
of such determination by the Board of Directors of the Company.

            Section 32. Governing Law. This Agreement and each Rights
Certificate issued hereunder shall be deemed to be a contract made under the
laws of the State of California and for all purposes shall be governed by and
construed in accordance with the laws of such State applicable to contracts to
be made and performed entirely within such State.

            Section 33. Counterparts. This Agreement may be executed in any
number of counterparts and each of such counterparts shall for all purposes be
deemed to be an original, and all such counterparts shall together constitute
but one and the same instrument.

            Section 34. Descriptive Headings. Descriptive headings of the
several sections of this Agreement are inserted or convenience only and shall
not control or affect the meaning or construction of any of the provisions
hereof.


                                      37.
<PAGE>   41
            IN WITNESS WHEREOF, the parties hereto have caused this Agreement to
be duly executed and attested, all as of the day and year first above written.

ATTEST:                                CISCO SYSTEMS, INC.


By  /s/ DENNIS D. POWELL               By  /s/ JOHN T. CHAMBERS
    -------------------------------        --------------------------------
    Name: Dennis D. Powell                 Name: John T. Chambers
    Title: Corporate Controller            Title: President and CEO



                                       BANK BOSTON, N.A.,
                                       as Rights Agent


                                       By  /s/ GEOFFREY D. ANDERSON
                                           ---------------------------------
                                           Name: Geoffrey D. Anderson
                                           Title: Administration Manager


                                      38.
<PAGE>   42
                                                                       EXHIBIT A


                                      FORM

                                       of

                          CERTIFICATE OF DETERMINATION

                                       of

                  SERIES A JUNIOR PARTICIPATING PREFERRED STOCK

                                       of

                               CISCO SYSTEMS, INC.

                         (Pursuant to Section 467 of the
                       California General Corporation Law)

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


            Cisco Systems, Inc., a corporation organized and existing under the
General Corporation Law of the State of California (hereinafter called the
"Corporation"), hereby certifies that the following resolution was adopted by
the Board of Directors of the Corporation as required by Section 401 of the
General Corporation Law at a meeting duly called and held on June 8, 1998.

            RESOLVED, that pursuant to the authority granted to and vested in
the Board of Directors of the Corporation (hereinafter called the "Board of
Directors" or the "Board") in accordance with the provisions of the Articles of
Incorporation, the Board of Directors hereby creates a series of Preferred
Stock, no par value (the "Preferred Stock"), of the Corporation and hereby
states the designation and number of shares, and fixes the relative rights,
preferences, and limitations thereof as follows:

            Series A Junior Participating Preferred Stock:

            Section 1. Designation and Amount. The shares of such series shall
be designated as "Series A Junior Participating Preferred Stock" (the "Series A
Preferred Stock") and the number of shares constituting the Series A Preferred
Stock shall be one million two hundred thousand (1,200,000). Such number of
shares may be increased or decreased by resolution of the Board of Directors;
provided, that no decrease shall reduce the number of shares of Series A


                                       A-1
<PAGE>   43
Preferred Stock to a number less than the number of shares then outstanding plus
the number of shares reserved for issuance upon the exercise of outstanding
options, rights or warrants or upon the conversion of any outstanding securities
issued by the Corporation convertible into Series A Preferred Stock.

            Section 2. Dividends and Distributions.

            (A)   Subject to the rights of the holders of any shares of any
      series of Preferred Stock (or any similar stock) ranking prior and
      superior to the Series A Preferred Stock with respect to dividends, each
      holder of a share of Series A Preferred Stock, in preference to the
      holders of shares of Common Stock, par value $.001 per share (the "Common
      Stock"), of the Corporation, and of any other junior stock, shall be
      entitled to receive, when declared by the Board of Directors out of funds
      legally available for the purpose, quarterly dividends payable in cash on
      the last day of March, June, September and December in each year (each
      such date being referred to herein as a "Quarterly Dividend Payment
      Date"), commencing on the first Quarterly Dividend Payment Date after the
      first issuance of a share or fraction of a share Series A Preferred Stock,
      in an amount per share (rounded to the nearest cent) equal to, subject to
      the provision for adjustment hereinafter set forth, Ten Thousand (10,000)
      times the aggregate per share amount of all cash dividends, and Ten
      Thousand (10,000) times the aggregate per share amount (payable in kind)
      of all non-cash dividends or other distributions, other than a dividend
      payable in shares of Common Stock or a subdivision of the outstanding
      shares of Common Stock (by reclassification or otherwise), declared on the
      Common Stock since the immediately preceding Quarterly Dividend Payment
      Date or, with respect to the first Quarterly Dividend Payment Date, since
      the first issuance of a share or fraction of Series A Preferred Stock. In
      the event the Corporation shall at any time declare or pay any dividend on
      the Common Stock payable in shares of Common Stock, or effect a
      subdivision or combination or consolidation of the outstanding shares of
      Common Stock (by reclassification or otherwise than by payment of a
      dividend in shares of Common Stock) into a greater or lesser number of
      shares of Common Stock, then in each such case the amount to which holders
      of shares of Series A Preferred Stock were entitled immediately prior to
      such event under clause (b) of the preceding sentence shall be adjusted by
      multiplying such amount by a fraction, the numerator of which is the
      number of shares of Common Stock outstanding immediately after such event
      and the denominator of which is the number of shares of Common Stock that
      were outstanding immediately prior to such event.

            (B)   The Corporation shall declare a dividend or distribution on
      the shares of Series A Preferred Stock as provided in paragraph (A) of
      this Section immediately after it declares a dividend or distribution on
      the Common Stock (other than a dividend payable in shares of Common
      Stock); provided, however, that, in the event no dividend or distribution
      shall have been declared on the Common Stock during the period between any
      Quarterly Distribution Date and the next subsequent Quarterly Dividend
      Payment Date,


                                       A-2
<PAGE>   44
      a dividend of $.000001 per share of Series A Preferred Stock shall
      nevertheless be payable on such subsequent Quarterly Dividend Payment
      Date.

            (C)   Dividends shall begin to accrue and be cumulative on each
      outstanding share of Series A Preferred Stock from the Quarterly Dividend
      Payment Date next preceding the date of issue of such share of Series A
      Preferred Stock, unless the date of issue of such share is prior to the
      record date for the first Quarterly Dividend Payment Date, in which case
      dividends on such share shall begin to accrue from the date of issue of
      such share, or unless the date of issue is a Quarterly Dividend Payment
      Date or is a date after the record date for the determination of holders
      of shares of Series A Preferred Stock entitled to receive a quarterly
      dividend and before such Quarterly Dividend Payment Date, in either of
      which events such dividends shall begin to accrue and be cumulative from
      such Quarterly Dividend Payment Date. Accrued but unpaid dividends shall
      not bear interest. Dividends paid on the shares of Series A Preferred
      Stock in an amount less than the total amount of such dividends at the
      time accrued and payable on such shares shall be allocated pro rata on a
      share-by-share basis among all such shares at the time outstanding. The
      Board of Directors may fix a record date for the determination of holders
      of shares of Series A Preferred Stock entitled to receive payment of a
      dividend or distribution declared thereon, which record date shall be not
      more than 60 days prior to the date fixed for the payment thereof.

            Section 3. Voting Rights. The holders of shares of Series A
Preferred Stock shall have the following voting rights:

            (A)   Subject to the provision for adjustment hereinafter set forth,
      each share of Series A Preferred Stock shall entitle the holder thereof to
      Ten Thousand (10,000) votes on all matters submitted to a vote of the
      shareholders of the Corporation. In the event the Corporation shall at any
      time declare or pay any dividend on the Common Stock payable in shares of
      Common Stock, or effect a subdivision or combination or consolidation of
      the outstanding shares of Common Stock (by reclassification or otherwise
      than by payment of a dividend in shares of Common Stock) into a greater or
      lesser number of shares of Common Stock, then in each such case the number
      of votes per share to which holders of shares of Series A Preferred Stock
      were entitled immediately prior to such event shall be adjusted by
      multiplying such number by a fraction, the numerator of which is the
      number of shares of Common Stock outstanding immediately after such event
      and the denominator of which is the number of shares of Common Stock that
      were outstanding immediately prior to such event.

            (B)   Except as otherwise provided herein, in any other Certificate
      of Determination creating a series of Preferred Stock or any similar
      stock, or by law, the holders of shares of Series A Preferred Stock and
      the holders of shares of Common Stock and any other capital stock of the
      Corporation having general voting rights shall vote together as one class
      on all matters submitted to a vote of shareholders of the Corporation.


                                       A-3
<PAGE>   45
            (C)   Except as set forth herein, or as otherwise provided by law,
      holders of Series A Preferred Stock shall have no special voting rights
      and their consent shall not be required (except to the extent they are
      entitled to vote with holders of Common Stock as set forth herein) for
      taking any corporate action.

            Section 4. Certain Restrictions.

            (A)   Whenever quarterly dividends or other dividends or
      distributions payable on the Series A Preferred Stock as provided in
      Section 2 are in arrears, thereafter and until all accrued and unpaid
      dividends and distributions, whether or not declared, on shares of Series
      A Preferred Stock outstanding shall have been paid in full, the
      Corporation shall not:

                  (i)   declare or pay dividends, or make any other
            distributions, on any shares of stock ranking junior (either as to
            dividends or upon liquidation, dissolution or winding up) to the
            Series A Preferred Stock;

                  (ii)  declare or pay dividends, or make any other
            distributions, on any shares of stock ranking on a parity (either as
            to dividends or upon liquidation, dissolution or winding up) with
            the Series A Preferred Stock, except dividends paid ratably on the
            shares of Series A Preferred Stock and all such parity stock on
            which dividends are payable or in arrears in proportion to the total
            amounts to which the holders of all such shares are then entitled;

                  (iii) redeem or purchase or otherwise acquire for
            consideration shares of any stock ranking junior (either as to
            dividends or upon liquidation, dissolution or winding up) to the
            Series A Preferred Stock, provided that the Corporation may at any
            time redeem, purchase or otherwise acquire shares of any such junior
            stock in exchange for shares of any stock of the Corporation ranking
            junior (either as to dividends or upon dissolution, liquidation or
            winding up) to the Series A Preferred Stock; or

                  (iv)  redeem or purchase or otherwise acquire for
            consideration any shares of Series A Preferred Stock, or any shares
            of stock ranking on a parity with the Series A Preferred Stock,
            except in accordance with a purchase offer made in writing or by
            publication (as determined by the Board of Directors) to all holders
            of such shares upon such terms as the Board of Directors, after
            consideration of the respective annual dividend rates and other
            relative rights and preferences of the respective series and
            classes, shall determine in good faith will result in fair and
            equitable treatment among the respective series or classes.


                                       A-4
<PAGE>   46
            (B)   The Corporation shall not permit any subsidiary of the
      Corporation to purchase or otherwise acquire for consideration any shares
      of stock of the Corporation unless the Corporation could, under paragraph
      (A) of this Section 4, purchase or otherwise acquire such shares at such
      time and in such manner.

            Section 5. Reacquired Shares. Any shares of Series A Preferred Stock
purchased or otherwise acquired by the Corporation in any manner whatsoever
shall be retired and cancelled promptly after the acquisition thereof. All such
shares shall upon their cancellation become authorized but unissued shares of
Preferred Stock and may be reissued as part of a new series of Preferred Stock
subject to the conditions and restrictions on issuance set forth herein, in the
Articles of Incorporation, or in any other Certificate of Determination creating
a series of Preferred Stock or any similar stock or as otherwise required by
law.

            Section 6. Liquidation, Dissolution or Winding Up.

            (A)   Upon any liquidation, dissolution or winding up of the
Corporation, no distribution shall be made (1) to the holders of shares of stock
ranking junior (either as to dividends or upon liquidation, dissolution or
winding up) to the Series A Preferred Stock unless, prior thereto, the holders
of shares of Series A Preferred Stock shall have received Ten Thousand Dollars
($10,000) per share, plus an amount equal to accrued and unpaid dividends and
distributions thereon, whether or not declared, to the date of such payment,
provided that the holders of shares of Series A Preferred Stock shall be
entitled to receive an aggregate amount per share, subject to the provision for
adjustment hereinafter set forth, equal to 10,000 times the aggregate amount to
be distributed per share to holders of shares of Common Stock, or (2) to the
holders of shares of stock ranking on a parity (either as to dividends or upon
liquidation, dissolution or winding up) with the Series A Preferred Stock,
except distributions made ratably on the Series A Preferred Stock and all such
parity stock in proportion to the total amounts to which the holders of all such
shares are entitled upon such liquidation, dissolution or winding up. In the
event the Corporation shall at any time declare or pay any dividend on the
Common Stock payable in shares of Common Stock, or effect a subdivision or
combination or consolidation of the outstanding shares of Common Stock (by
reclassification or otherwise than by payment of a dividend in shares of Common
Stock) into a greater or lesser number of shares of Common Stock, then in each
such case the aggregate amount to which holders of shares of Series A Preferred
Stock were entitled immediately prior to such event under the proviso in clause
(1) of the preceding sentence shall be adjusted by multiplying such amount by a
fraction the numerator of which is the number of shares of Common Stock
outstanding immediately after such event and the denominator of which is the
number of shares of Common Stock that were outstanding immediately prior to such
event.

            (B)   In the event, however, that there are not sufficient assets
available to permit payment in full to the Series A Liquidation Preference and
the liquidation preferences of all other series of Preferred Stock, if any,
which rank on a parity with the Series A Preferred Stock, then such remaining
assets shall be distributed ratably to the holders of such parity shares in
proportion to their respective liquidation preferences. In the event, however,
that there are not


                                       A-5
<PAGE>   47
sufficient assets available to permit payment in full of the Common Adjustment,
then such remaining assets shall be distributed ratably to the holders of Common
Stock.

            (C)   In the event the Corporation shall at any time after the
Rights Declaration Date (i) declare any dividend on Common Stock payable in
shares of Common Stock, (ii) subdivide the outstanding Common Stock, or (iii)
combine the outstanding Common Stock into a smaller number of shares, then in
each such case the Adjustment Number in effect immediately prior to such event
shall be adjusted by multiplying such Adjustment Number by a fraction the
numerator of which is the number of shares of Common Stock outstanding
immediately after such event and the denominator of which is the number of
shares of Common Stock that were outstanding immediately prior to such event.

            Section 7. Consolidation, Merger, etc. In case the Corporation shall
enter into any consolidation, merger, combination or other transaction in which
the shares of Common Stock are exchanged for or changed into other stock or
securities, cash and/or any other property, then in any such case each share of
Series A Preferred Stock shall at the same time be similarly exchanged or
changed into an amount per share, subject to the provision for adjustment
hereinafter set forth, equal to Ten Thousand (10,000) times the aggregate amount
of stock, securities, cash and/or any other property (payable in kind), as the
case may be, into which or for which each share of Common Stock is changed or
exchanged. In the event the Corporation shall at any time declare or pay any
dividend on the Common Stock payable in shares of Common Stock, or effect a
subdivision or combination or consolidation of the outstanding shares of Common
Stock (by reclassification or otherwise than by payment of a dividend in shares
of Common Stock) into a greater or lesser number of shares of Common Stock, then
in each such case the amount set forth in the preceding sentence with respect to
the exchange or change of shares of Series A Preferred Stock shall be adjusted
by multiplying such amount by a fraction, the numerator of which is the number
of shares of Common Stock outstanding immediately after such event and the
denominator of which is the number of shares of Common Stock that were
outstanding immediately prior to such event.

            Section 8. No Redemption. The shares of Series A Preferred Stock
shall not be redeemable.

            Section 9. Rank. The Series A Preferred Stock shall rank, with
respect to the payment of dividends and the distribution of assets, junior to
all series of any other class of the Corporation's Preferred Stock.

            Section 10. Amendment. The Restated Articles of Incorporation of the
Corporation shall not be amended in any manner which would materially alter or
change the powers, preferences or special rights of the Series A Preferred Stock
so as to affect them adversely without the affirmative vote of the holders of at
least a majority of the outstanding shares of Series A Preferred Stock, voting
together as a single class.


                                       A-6
<PAGE>   48
            The undersigned certify under penalty of perjury that they have read
the foregoing Certificate of Determination and know the contents thereof, and
that the statements therein are true.

            Executed at San Jose, California, on June 10, 1998.


                                    /s/ JOHN T. CHAMBERS
                                    --------------------------------------------
                                    Name: John T. Chambers
                                    Title: President and Chief Executive Officer


                                    /s/ DAVID ROGAN
                                    --------------------------------------------
                                       Name: David Rogan
                                       Title: Vice President, Treasurer,
                                              Assistant Secretary



                                       A-7
<PAGE>   49
                                                                       EXHIBIT B


                           Form of Rights Certificate

Article No. R-                                                   ________ Rights


            NOT EXERCISABLE AFTER JUNE 10, 2008 OR EARLIER IF REDEMPTION OR
            EXCHANGE OCCURS. THE RIGHTS ARE SUBJECT TO REDEMPTION AT THE OPTION
            OF THE COMPANY AT $.001 PER RIGHT AND TO EXCHANGE ON THE TERMS SET
            FORTH IN THE RIGHTS AGREEMENT. UNDER CERTAIN CIRCUMSTANCES, RIGHTS
            BENEFICIALLY OWNED BY AN ACQUIRING PERSON OR AN AFFILIATE OR
            ASSOCIATE OF AN ACQUIRING PERSON (AS SUCH TERMS ARE DEFINED IN THE
            RIGHTS AGREEMENT) AND ANY SUBSEQUENT HOLDER OF SUCH RIGHTS MAY
            BECOME NULL AND VOID. [THE RIGHTS REPRESENTED BY THIS RIGHTS
            CERTIFICATE ARE OR WERE BENEFICIALLY OWNED BY A PERSON WHO WAS OR
            BECAME AN ACQUIRING PERSON OR AN AFFILIATE OR ASSOCIATE OF AN
            ACQUIRING PERSON (AS SUCH TERMS ARE DEFINED IN THE RIGHTS
            AGREEMENT). ACCORDINGLY, THIS RIGHTS CERTIFICATE AND THE RIGHTS
            REPRESENTED HEREBY MAY BECOME NULL AND VOID IN THE CIRCUMSTANCES
            SPECIFIED IN SUCH AGREEMENT.]*


                               Rights Certificate

                               CISCO SYSTEMS, INC.


            This certifies that , or registered assigns, is the registered owner
of the number of Rights set forth above, each of which entitles the owner
thereof, subject to the terms, provisions and conditions of the Rights
Agreement, dated as of June 10, 1998 (the "Rights Agreement"), between Cisco
Systems, Inc., a California corporation (the "Company"), and Bank Boston, N.A.
(the "Rights Agent"), to purchase from the Company at any time after the
Distribution Date (as such term is defined in the Rights Agreement) and prior to
5:00 P.M., Massachusetts time, on June 10, 2008, at the office of the Rights
Agent designated for such 

- -------- 

      * The portion of the legend in bracket shall be inserted only if
applicable and shall replace the preceding sentence.


                                       B-1
<PAGE>   50
purpose, or at the office of its successor as Rights Agent, one ten-thousandth
(a "Unit") of a fully paid non-assessable share of Series A Junior Participating
Preferred Stock, no par value (the "Series A Preferred Stock") of the Company,
at a purchase price of $650.00 per Unit of Series A Preferred Stock (the
"Purchase Price"), upon presentation and surrender of this Rights Certificate
with the Form of Election to Purchase duly executed. The number of Rights
evidenced by this Rights Certificate (and the number of Units of Series A
Preferred Stock which may be purchased upon exercise hereof) set forth above,
and the Purchase Price set forth above, are the number and Purchase Price as of
June 22, 1998 based on the Series A Preferred Stock as constituted at such date.
As provided in the Rights Agreement, the Purchase Price and the number of Units
of Series A Preferred Stock which may be purchased upon the exercise of the
Rights evidenced by this Rights Certificate are subject to modification and
adjustment upon the happening of certain events.

            This Rights Certificate is subject to all of the terms, provisions
and conditions of the Rights Agreement, which terms, provisions and conditions
are hereby incorporated herein by reference and made a part hereof and to which
Rights Agreement reference is hereby made for a full description of the rights,
limitations of rights, obligations, duties and immunities hereunder of the
Rights Agent, the Company and the holders of the Rights Certificate. Copies of
the Rights Agreement are on file at the principal executive offices of the
Company.

            This Rights Certificate, with or without other Rights Certificate,
upon surrender at the office of the Rights Agent designated for such purpose,
may be exchanged for another Rights Certificate or Rights Certificate of like
tenor and date evidencing Rights entitling the holder to purchase a like
aggregate number of Series A Preferred Stock as the Rights evidenced by the
Rights Certificate or Rights Certificate surrendered shall have entitled such
holder to purchase. If this Rights Certificate shall be exercised in part, the
holder shall be entitled to receive upon surrender hereof another Rights
Certificate or Rights Certificate for the number of whole Rights not exercised.

            Subject to the provisions of the Rights Agreement, the Rights
evidenced by this Articles may be redeemed by the Company at a redemption price
of $.001 per Right.

            No fractional shares of Series A Preferred Stock will be issued upon
the exercise of any Rights or Rights evidenced hereby (other than fractions
which are integral multiples of one one-millionth of a share of Series A
Preferred Stock, which may, at the election of the Company, be evidenced by
depositary receipts), but in lieu thereof a cash payment will be made, as
provided in the Rights Agreement.

            No holder of this Rights Certificate, as such, shall be entitled to
vote or receive dividends or be deemed for any purpose the holder of Units of
Series A Preferred Stock or of any other securities of the Company which may at
any time be issuable on the exercise hereof, nor shall anything contained in the
Rights Agreement or herein be construed to confer upon the holder hereof, as
such, any of the rights of a shareholder of the Company or any right to vote for
the election of directors or upon any matter submitted to shareholders at any
meeting thereof, or


                                       B-2
<PAGE>   51
to give or withhold consent to any corporate action, or to receive notice of
meetings or other actions affecting shareholders (except as provided in the
Rights Agreement), or to receive dividends or subscription rights, or otherwise,
until the Rights or Rights evidenced by this Rights Certificate shall have been
exercised as provided in the Rights Agreement.

            This Rights Certificate shall not be valid or obligatory for any
purpose until it shall have been countersigned by the Rights Agent.

            WITNESS the signature of the proper officers of the Company and its
corporate seal. Dated as of June 10, 1998.




ATTEST:                                CISCO SYSTEMS, INC.



__________________________             By ______________________________________
Name:                                  Name:
Title:                                 Title:




Countersigned:

BANK BOSTON, N.A.
as Rights Agent


By___________________________________
  Authorized Signatory


                                       B-3
<PAGE>   52
                   Form of Reverse Side of Rights Certificate

                               FORM OF ASSIGNMENT


            (To be executed by the registered holder if such holder desires to
            transfer the Rights Certificate.)

            FOR VALUE RECEIVED ______________________________ hereby sells,
assigns and transfers unto
________________________________________________________________________________
                 (Please print name and address of transferee)

this Rights Certificate, together with all right, title and interest therein,
and does hereby irrevocably constitute and appoint __________________ Attorney,
to transfer the within Rights Certificate on the books of the within-named
Company, with full power of substitution.


Dated: __________________, _____



                                               ---------------------------------
                                                           Signature

Signature Guaranteed:

            Signatures must be guaranteed by a participant in a Securities
Transfer Association Inc. recognized signature guarantee medallion program.


                                       B-4
<PAGE>   53
                                   CERTIFICATE


            The undersigned hereby certifies that the Rights evidenced by this
Rights Certificate are not beneficially owned by an Acquiring Person or an
Affiliate or Associate thereof (as defined in the Rights Agreement).



                                               ---------------------------------
                                                           Signature



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


                                     NOTICE

            The signature in the foregoing Form of Assignment must conform to
the name as written upon the face of this Rights Certificate in every
particular, without alteration or enlargement or any change whatsoever.

            In the event the certification set forth above in the Form of
Assignment is not completed, the Company and the Rights Agent will deem the
beneficial owner of the Rights evidenced by this Rights Certificate to be an
Acquiring Person or an Affiliate or Associate thereof (as defined in the Rights
Agreement) and such Assignment will not be honored.


                                       B-5
<PAGE>   54
                          FORM OF ELECTION TO PURCHASE


(To be executed if holder desires to exercise the Rights Certificate.)


To Cisco Systems, Inc.

            The undersigned hereby irrevocably elects to exercise Rights
represented by this Rights Certificate to purchase the units of Series A
Preferred Stock issuable upon the exercise of such Rights and requests that
certificates for such Series A Preferred Stock be issued in the name of:

Please insert social security
or other identifying number ____________________________________________________
                                      (Please print name and address)

If such number of Rights shall not be all the Rights evidenced by this Rights
Certificate, a new Rights Certificate for the balance remaining of such Rights
shall be registered in the name of and delivered to:

Please insert social security
or other identifying number ____________________________________________________
                                      (Please print name and address)




Dated: _______________, ____



                                               ---------------------------------
                                                           Signature


Signature Guaranteed:

            Signatures must be guaranteed by a participant in a Securities
Transfer Association Inc. recognized signature guarantee medallion program.


                                       B-6
<PAGE>   55
                                   CERTIFICATE


            The undersigned hereby certifies that the Rights evidenced by this
Rights Certificate are not beneficially owned by an Acquiring Person or an
Affiliate or Associate thereof (as defined in the Rights Agreement).



                                               ---------------------------------
                                                           Signature





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


                                     NOTICE


            The signature in the foregoing Form of Election to Purchase must
conform to the name as written upon the face of this Rights Certificate in every
particular, without alteration or enlargement or any change whatsoever.

            In the event the certification set forth above in the Form of
Election to Purchase, as the case may be, is not completed, the Company and the
Rights Agent will deem the beneficial owner of the Rights evidenced by this
Rights Certificate to be an Acquiring Person or an Affiliate or Associate
thereof (as defined in the Rights Agreement) and such Election to Purchase will
not be honored.


                                       B-7
<PAGE>   56
                                                                       EXHIBIT C


                               CISCO SYSTEMS, INC.

                          SUMMARY OF RIGHTS TO PURCHASE
                       SHARES OF SERIES A PREFERRED STOCK


            On June 10, 1998 the Board of Directors of Cisco Systems, Inc. (the
"Company") declared a dividend of one preferred share purchase right (a "Right")
for each outstanding share of Common Stock (the "Common Stock"), par value $.001
per share, of the Company. The dividend is payable on June 22, 1998 (the "Record
Date") to the shareholders of record on that date. Each Right entitles the
registered holder to purchase from the Company one ten-thousandth of a share (a
"Unit") of Series A Junior Participating Preferred Stock, no par value (the
"Series A Preferred Stock"), of the Company at a price of $650.00 per Unit (the
"Purchase Price"), subject to adjustment. The description and terms of the
Rights are set forth in a Rights Agreement dated as of June 10, 1998 (the
"Rights Agreement") between the Company and Bank Boston, N.A., as Rights Agent
(the "Rights Agent").

            Until the earlier to occur of (i) a public announcement that a
person or group of affiliated or associated persons (an "Acquiring Person") have
acquired beneficial ownership of 15% or more of the outstanding Common Stock or
(ii) 10 business days (or such later date as may be determined by action of the
Continuing Directors prior to such time as any Person becomes an Acquiring
Person) following the commencement of, or announcement of an intention to make,
a tender offer or exchange offer the consummation of which would result in the
beneficial ownership by a person or group of 15% or more of such outstanding
Common Stock (the earlier of such dates being called the "Distribution Date"),
the Rights will be evidenced, with respect to any of the Common Stock
certificates outstanding as of the Record Date, by such Common Stock certificate
with a copy of this Summary of Rights attached thereto.

            The Rights Agreement provides that, until the Distribution Date, the
Rights will be transferred with and only with the Common Stock. Until the
Distribution Date (or earlier redemption or expiration of the Rights), new
Common Stock certificates issued after the Record Date, upon transfer or new
issuance of Common Stock will contain a notation incorporating the Rights
Agreement by reference. Until the Distribution Date (or earlier redemption or
expiration of the Rights), the surrender for transfer of any certificates for
Common Stock, outstanding as of the Record Date, even without such notation or a
copy of this Summary of Rights being attached thereto, will also constitute the
transfer of the Rights associated with the Common Stock represented by such
certificate. As soon as practicable following the Distribution Date, separate
certificates evidencing the Rights ("Rights Certificate") will be mailed to
holders of record of the


                                      C-1.
<PAGE>   57
Common Stock as of the Close of Business on the Distribution Date and such
separate Rights Certificate alone will evidence the Rights.

            The Rights are not exercisable until the Distribution Date. The
Rights will expire at the close of business on June 10, 2008 (the "Final
Expiration Date"), unless the Final Expiration Date is extended or unless the
Rights are earlier redeemed or exchanged by the Company, in each case as
described below.

            The Purchase Price payable, and the number of Units of Preferred
Stock or other securities or property issuable, upon exercise of the Rights are
subject to adjustment from time to time to prevent dilution (i) in the event of
a stock dividend on, or a subdivision, combination or reclassification of, the
Preferred Stock, (ii) upon the grant to holders of the Units of Preferred Stock
of certain rights or warrants to subscribe for or purchase Units of Preferred
Stock at a price, or securities convertible into Units of Preferred Stock with a
conversion price, less than the then current market price of the Units of
Preferred Stock or (iii) upon the distribution to holders of the Units of
Preferred Stock of evidences of indebtedness or assets (excluding regular
periodic cash dividends paid out of earnings or retained earnings or dividends
payable in Units of Preferred Stock) or of subscription rights or warrants
(other than those referred to above).

            The number of outstanding Rights and the number of Units of
Preferred Stock issuable upon exercise of each Right are also subject to
adjustment in the event of a stock split of the Common Stock or a stock dividend
on the Common Stock payable in Common Stock or subdivisions, consolidations or
combinations of the Common Stock occurring, in any such case, prior to the
Distribution Date.

            Units of Preferred Stock purchasable upon exercise of the Rights
will not be redeemable. Each Unit of Preferred Stock will be entitled to a
dividend equal to any dividend declared per share of Common Stock. In the event
of liquidation, each Unit of Preferred Stock will be entitled to a payment equal
to any payment made per share of Common Stock. Each Unit of Preferred Stock will
have one vote, voting together with the Common Stock. Finally, in the event of
any merger, consolidation or other transaction in which shares of Common Stock
are exchanged, each Unit of Preferred Stock will be entitled to receive an
amount equal to the amount received per share of Common Stock. These rights are
protected by customary anti-dilution provisions.

            Because of the nature of the dividend, liquidation and voting
rights, the value of each Unit of Preferred Stock purchasable upon exercise of
the Rights should approximate the value of one share of Common Stock.

            In the event that, after the Rights become exercisable, the Company
is acquired in a merger or other business combination transaction with an
Acquiring Person or an affiliate thereof, or 50% or more of its consolidated
assets or earning power are sold to an Acquiring


                                      C-2.
<PAGE>   58
Person or an affiliate thereof, proper provision will be made so that each
holder of a Right will thereafter have the right to receive, upon exercise
thereof at the then current exercise price of the Rights, that number of shares
of common stock of the acquiring company which at the time of such transaction
will have a market value of two times the exercise price of the Rights.

            In the event that any person or group of affiliated or associated
persons becomes the beneficial owner of 15% or more of the outstanding shares of
Common Stock proper provision shall be made so that each holder of a Right,
other than Rights beneficially owned by the Acquiring Person (which will
thereafter be void), will thereafter have the right to receive upon exercise
that number of shares of Common Stock or Units of Preferred Stock (or cash,
other securities or property) having a market value of two times the exercise
price of the Rights.

            At any time after the acquisition by a person or group of affiliated
or associated persons of beneficial ownership of 15% or more of the outstanding
shares of Common Stock and prior to the acquisition by such person or group of
50% or more of the outstanding Common Stock, the Continuing Directors of the
Company may exchange all or part of the Rights (other than Rights owned by such
person or group which have become void) for Units of Preferred Stock at an
exchange ratio of (subject to adjustment) which shall equal, subject to
adjustment to reflect stock splits, stock dividends and similar transactions
occurring after the date hereof, that number obtained by dividing the Purchase
Price by the then current per share market price per Unit of Preferred Stock on
the earlier of (i) the date on which any Person becomes an Acquiring Person and
(ii) the date on which a tender or exchange offer is announced by any Person, if
upon consummation thereof such Person would be the Beneficial Owner of 15% or
more of the shares of Company Common Stock then outstanding.

            With certain exceptions, no adjustment in the Purchase Price will be
required until cumulative adjustments require an adjustment of at least 1% in
such Purchase Price. No fractional shares of Preferred Stock will be issued
(other than fractions which are integral multiples of one ten-thousandth of a
share of Preferred Stock, which may, at the election of the Company, be
evidenced by depositary receipts) and, in lieu thereof, an adjustment in cash
will be made based on the market price of the Units of Preferred Stock on the
last trading day prior to the date of exercise.

            At any time prior to the public announcement that a person or group
of affiliated or associated persons has acquired beneficial ownership of 15% or
more of the outstanding Common Stock, the Board of Directors of the Company may
redeem the Rights in whole, but not in part, at a price of $.001 per Right (the
"Redemption Price"), upon the approval of a majority of the Continuing
Directors. The redemption of the rights may be made effective at such time on
such basis and with such conditions as the Board of Directors, upon the approval
of the Continuing Directors in its sole discretion may establish. Immediately
upon any redemption of the Rights, the right to exercise the Rights will
terminate and the only right of the holders


                                      C-3.
<PAGE>   59
of Rights will be to receive the Redemption Price. The Rights are also
redeemable under other circumstances as specified in the Rights Agreement.

            The terms of the Rights may be amended by the Board of Directors of
the Company without the consent of the holders of the Rights upon the approval
of a majority of the Continuing Directors except that from and after a
Distribution Date no such amendment may adversely affect the interests of the
holders of the Rights.

            Until a Right is exercised, the holder thereof, as such, will have
no rights as a shareholder of the Company, including, without limitation, the
right to vote or to receive dividends.

            The Rights have certain anti-takeover effects. The Rights will cause
substantial dilution to a person or group that attempts to acquire the Company
on terms not approved by the Company's Board of Directors, except pursuant to an
offer conditioned on a substantial number of rights being acquired. The Rights
should not interfere with any merger or other business combination approved by
the Board of Directors because the Rights may be redeemed by the Company at the
Redemption Price prior to the occurrence of a Distribution Date.

            A copy of the Rights Agreement has been filed with the Securities
and Exchange Commission as an Exhibit to a Registration Statement on Form 8-A. A
copy of the Rights Agreement is available free of charge from the Company. This
summary description of the Rights does not purport to be complete and is
qualified in its entirety by reference to the Rights Agreement, which is hereby
incorporated herein by reference.


                                      C-4.


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