Prospectus Supplement

       THIS DOCUMENT CONSTITUTES PART OF A PROSPECTUS COVERING SECURITIES
           THAT HAVE BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933
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                            COMPUTER HORIZONS CORP.
                         500,832 shares of Common Stock
                               ($0.10 par value)
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           The date of this Prospectus Supplement is August 30, 1999
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          This Prospectus Supplement  supplements the Prospectus dated March 30,
1998 (as so amended, the "Prospectus"),  relating to the offer and sale of up to
504,860  shares of the common stock,  $0.10 par value (the "Common  Stock"),  of
Computer Horizons Corp. (the "Company").  To the Company's knowledge,  as of the
date  hereof  465,961  shares of Common  Stock  continue  to be offered for sale
pursuant to the registration statement to which the Prospectus relates.

          On July 13, 1999,  the Board of  Directors  of the Company  declared a
dividend distribution of one preferred stock purchase right (a "Right") for each
outstanding share of Common Stock, payable to the stockholders of record on July
16,  1999 (the  "Record  Date").  The Board of  Directors  also  authorized  and
directed  the  issuance of one Right with  respect to each Share of Common Stock
issued thereafter until the Distribution Date (as defined below) and, in certain
circumstances,  with  respect  to  shares  of  Common  Stock  issued  after  the
Distribution Date.

          Except as set forth below,  each Right,  when it becomes  exercisable,
entitles  the  registered  holder to purchase one  one-thousandth  of a share of
Series B Junior  Participating  Preferred Stock,  $.10 par value (the "Preferred
Stock"),  at a price of $90, subject to adjustment (the "Purchase  Price").  The
description  and terms of the  Rights are set forth in a Rights  Agreement  (the
"Rights  Agreement")  between the Company and Registrar and Transfer Company, as
Rights Agent (the "Rights Agent"), dated as of July 13, 1999.

          Initially,   the  Rights  will  be   attached   to  all   certificates
representing  shares of Common  Stock then  outstanding,  and no separate  Right
Certificates  will be  distributed.  The Rights will separate from the shares of
Common  Stock upon the  earliest to occur of (i) a person or entity (a "Person")
or group of  affiliated  or  associated  Persons  (a  "Group")  having  acquired
beneficial  ownership of 20% or more of the  outstanding  shares of Common Stock
(except  pursuant to a Permitted  Offer,  as  hereinafter  defined);  or (ii) 10
business  days (or such  later  date as the Board of  Directors  may  determine)
following the commencement of, or announcement of an intention to make, a tender
offer or exchange  offer the  consummation  of which would result in a Person or
Group  becoming an Acquiring  Person (as  hereinafter  defined) (the earliest of
such  dates  being  called the  "Distribution  Date").  A Person or Group  whose
acquisition of shares of Common






Stock causes a  Distribution  Date pursuant to clause (i) above is an "Acquiring
Person."  The date that a Person or Group  becomes  an  Acquiring  Person is the
"Stock Acquisition Date."

          In addition,  a Person who acquires shares of Common Stock pursuant to
a tender or exchange offer which is for all  outstanding  shares of Common Stock
at a price  and on terms  which  the  Board of  Directors  determines  (prior to
acquisition)  to be adequate  and in the best  interests  of the Company and its
stockholders  (other  than  such  Person,  its  affiliates  and  associates)  (a
"Permitted  Offer")  will  not be  deemed  to be an  Acquiring  Person  and such
Person's ownership will not constitute a Distribution Date.

          The shares of Preferred Stock  purchasable upon exercise of the Rights
will have a minimum preferential quarterly dividend of $1.00 per share, but will
be entitled to receive,  in the aggregate,  a dividend of one thousand times the
dividend  declared on the shares of Common Stock.  In the event of  liquidation,
the  holders of the shares of  Preferred  Stock  will be  entitled  to receive a
minimum liquidation payment of $1,000 per share, but will be entitled to receive
an aggregate  liquidation  payment equal to one thousand  times the payment made
per share of Common Stock.  Each share of Preferred Stock will have one thousand
votes,  voting  together  with the shares of Common  Stock.  In the event of any
merger,  consolidation or other  transaction in which shares of Common Stock are
exchanged,  each share of  Preferred  Stock  will be  entitled  to  receive  one
thousand times the amount and type of consideration received per share of Common
Stock.  The  rights  of the  shares  of  Preferred  Stock  as to  dividends  and
liquidation,  and in the event of mergers and  consolidation,  are  protected by
customary anti-dilution provisions.

          The Rights Agreement  provides that, until the Distribution  Date, the
Rights will be transferred with and only with the shares of Common Stock.  Until
the Distribution Date (or earlier  redemption or expiration of the Rights),  new
Common Stock certificates  issued after the Record Date upon the transfer or new
issuance of shares 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 shares of 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
shares of Common Stock represented by such  certificate.  As soon as practicable
following the Distribution  Date,  separate  certificates  evidencing the Rights
("Right  Certificates")  will be mailed to holders of record of the Common Stock
as of the close of business on the Distribution Date (and to each initial record
holder of certain  shares of Common Stock issued after the  Distribution  Date),
and such separate Right Certificates alone will evidence the Rights.

          The Rights are not exercisable  until the Distribution  Date, and will
expire at the close of business on July 15, 2009, unless earlier redeemed by the
Company as described below.

          In the event that any person becomes an Acquiring Person,  each holder
of Rights (other than Rights that have become null and void as described  below)
will thereafter have the right (the






"Flip-In Right") to receive,  upon exercise of such Rights, the number of shares
of Common Stock (or, in certain circumstances,  other securities of the Company)
having a value  (immediately  prior to such triggering event) equal to two times
the aggregate exercise price of such Rights. For example,  if a Person became an
Acquiring  person  at a time when the  current  per  share  market  price of the
Company's  Common Stock was $18 and the Purchase Price was $90, each holder of a
Right  (other than a Right which has become null and void as  described  herein)
would have the right to receive ten shares of Common Stock upon  exercise of the
Right and payment of the Purchase Price of $90.

          The Board,  at its option,  may exchange  each Right (other than those
that have become null and void as described below) for one share of Common Stock
in lieu of the Flip-In Right,  provided no Person is the beneficial owner of 50%
or  more  of  the  shares  of  Common  Stock  at  the  time  of  such  exchange.
Notwithstanding  the foregoing,  following the occurrence of the event described
above,  all Rights that are or (under  certain  circumstances  specified  in the
Rights  Agreement)  were  beneficially  owned  by any  Acquiring  Person  or any
affiliate or associate thereof or certain  transferees  thereof will be null and
void.

          In the event that, at any time following the Stock  Acquisition  Date,
(i)  the  Company  is  acquired  in  a  merger  or  other  business  combination
transaction  in which the  holders  of all of the  outstanding  shares of Common
Stock  immediately  prior to the  consummation  of the  transaction  are not the
holders of all of the surviving  corporation's  voting power,  or (ii) more than
50% of the Company's  assets or earning power is sold or transferred,  then each
holder of Rights (except Rights which  previously  have been voided as set forth
above) shall thereafter have the right (the "Flip-Over Right") to receive,  upon
exercise of such Rights,  shares of Common Stock of the acquiring company (or in
certain  circumstances,  its  parent)  having  a value  equal to two  times  the
aggregate  exercise price of the Rights.  The Flip-Over Right shall not apply to
any transaction  described in clause (i) if such transaction is with a Person or
Persons  (or a wholly  owned  subsidiary  of any such  Person or  Persons)  that
acquired  shares of Common Stock pursuant to a Permitted Offer and the price and
form of  consideration  offered in such  transaction is the same as that paid to
all  holders  of Common  Stock  whose  shares  were  purchased  pursuant  to the
Permitted Offer. The holder of a Right will continue to have the Flip-Over Right
whether or not such holder exercises or surrenders the Flip-In Right.

          The Purchase Price  payable,  and the number of shares of Common Stock
or other  securities  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 Common
Stock,  (ii) upon the grant to holders of the Common Stock of certain  rights or
warrants to  subscribe  for or purchase  shares of Common  Stock at a price,  or
securities convertible into shares of Common Stock with a conversion price, less
than the then  current  market  price of the  Common  Stock,  or (iii)  upon the
distribution  to holders of the Common  Stock of evidences  of  indebtedness  or
assets (excluding regular quarterly cash dividends) or of subscription rights or
warrants (other than those referred to above).






          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 Common Stock will be issued and, in
lieu  thereof,  an  adjustment in cash will be made based on the market price of
the Common Stock on the last trading day prior to the date of exercise.

          At any time prior to the earlier to occur of (i) a person  becoming an
Acquiring  Person or (ii) the  expiration of the Rights,  the Company may redeem
the  Rights  in  whole,  but not in  part,  at a price of $.01  per  Right  (the
"Redemption  Price"),  which redemption shall be effective at such time, on such
basis and with such  conditions  as the Board of Directors  may establish in its
sole  discretion.  The Company may, at its option,  pay the Redemption  Price in
Common Stock.

          All of the  provisions  of the Rights  Agreement may be amended by the
Board of Directors prior to the Distribution  Date. After the Distribution Date,
the  provisions of the Rights  Agreement may be amended by the Board in order to
cure any  ambiguity,  defect  or  inconsistency,  to make  changes  which do not
adversely affect the interests of holders of Rights  (excluding the interests of
any  Acquiring  Person),  or,  subject  to  certain  limitations,  to shorten or
lengthen any time period under the Rights Agreement.

          Until a Right is exercised,  the holder thereof, as such, will have no
rights as a stockholder of the Company, including, without limitation, the right
to vote or to receive  dividends.  While the distribution of the Rights will not
be taxable to stockholders of the Company,  stockholders may, depending upon the
circumstances,  recognize taxable income should the Rights become exercisable or
upon the occurrence of certain events thereafter.

          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
incorporated herein by reference.

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                   THESE SECURITIES HAVE NOT BEEN APPROVED OR
                   DISAPPROVED BY THE SECURITIES AND EXCHANGE
               COMMISSION NOR HAS THE COMMISSION PASSED UPON THE
                  ACCURACY OR ADEQUACY OF THIS PROSPECTUS. ANY
                  REPRESENTATION TO THE CONTRARY IS A CRIMINAL
                                    OFFENSE.
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