U.S. SECURITIES AND EXCHANGE COMMISSION
                            WASHINGTON, D.C. 20549


                                   FORM 8-K


                                CURRENT REPORT
                      PURSUANT TO SECTION 13 OR 15(D) OF
                      THE SECURITIES EXCHANGE ACT OF 1934


       DATE OF REPORT (DATE OF EARLIEST EVENT REPORTED): AUGUST 24, 1998
                               -----------------

                             INFODATA SYSTEMS INC.
            (Exact Name of Registrant as Specified in its Charter)


                                    0-10416
                           (Commission File Number)

                  VIRGINIA                          16-0954695
       (State or other jurisdiction     (I.R.S. Employer Identification No.)
             of incorporation)


     12150 MONUMENT DRIVE, FAIRFAX, VIRGINIA               22033
       (Address of Principal Executive Office)          (Zip Code)


                  (703) 934-5205 (Issuer's Telephone Number)




Item 4.     CHANGES IN REGISTRANT'S CERTIFYING ACCOUNTANT

      Effective  August  24,  1998,  Infodata  Systems  Inc.  (the  "Company")
dismissed its prior  certifying  accountants,  Arthur  Andersen LLP ("AA") and
retained as its new certifying  accountants,  PricewaterhouseCoopers  LLP. The
decision  to  change  accountants  was  approved  by the  Company's  Board  of
Directors.

      During the last two fiscal years and the  subsequent  interim  period to
the date hereof, there were no disagreements between the Company and AA on any
matters of accounting principles or practices, financial statement disclosure,
or auditing scope or procedure,  which  disagreements,  if not resolved to the
satisfaction  of AA,  would have caused it to make a reference  to the subject
matter of the disagreements in connection with its reports.

      The reports of AA on the Company's financial statements for the past two
fiscal years did not contain an adverse opinion or a disclaimer of opinion and
were not  qualified or modified as to  uncertainty,  audit scope or accounting
principles.

      During the last two fiscal  years and  through  the  subsequent  interim
period to the date hereof,  there have been no reportable events as defined by
Item 304 of Regulation S-B with AA.

      During the last two fiscal  years and  through  the  subsequent  interim
period to the date hereof, the Company did not consult  PricewaterhouseCoopers
LLP regarding any of the matters or events set forth in Item  304(a)(2)(i) and
(ii) of Regulation S-B.


Item 7.     FINANCIAL STATEMENTS AND EXHIBITS

      (c)   Exhibits:

      Number          Description
      ------          -----------
        16            Letter  of Arthur  Andersen  LLP to the  Securities  and
                      Exchange  Commission  included  herein  pursuant  to the
                      requirements of Item 304(a) of Regulation S-B.

                                          SIGNATURES

      Pursuant  to  the  requirements  of the  Securities  Act  of  1934,  the
Registrant  has duly  caused  this  report to be  signed on its  behalf by the
undersigned thereunto duly authorized.

                                          INFODATA SYSTEMS INC.


                                          /s/RICHARD T. BUESCHEL
                                          ----------------------
Date:  August 24, 1998                    Richard T. Bueschel
                                          Chairman of the Board and
                                          Chief Executive Officer