EXHIBIT 10(ll)  
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                      EMPLOYMENT & NON-COMPETE AGREEMENT


         This  Agreement  is made as of  October  11,  1995  between  Infodata
Systems Inc., a Virginia  corporation  (the  "Company"),  and Andrew M. Fregly
("Employee"). The Company and Employee agree as follows:

         1.  Employment.  The Company  agrees to employ  Employee and Employee
accepts such employment by the Company upon the terms and conditions set forth
in this Agreement,  for the period beginning on the date of this Agreement and
ending upon termination pursuant to paragraph 4 (the "Employment Period").

         2.  Compensation.  In consideration  for the valuable  services to be
rendered by Employee and for his agreement not to compete  against the Company
as described in  paragraph  5, the Company  hereby  agrees that during the two
years of the Employment  Period,  the Company will pay Employee a gross salary
at the annual rate of $90,000 per annum (the "Base  Salary").  Employee's Base
Salary may be adjusted annually based on an annual  performance  salary review
as  determined in the  reasonable  discretion of the Board of Directors of the
Company (the "Board");  provided, however, that Employee's Base Salary may not
be adjusted to an amount  which is less than the  initial  Base Salary  amount
stated  above.  Employee  will  also  be  eligible  for  participation  in the
Company's incentive compensation program and Stock Option Plan.

         3. Services.  During the Employment Period, Employee agrees to devote
his best efforts and  substantially  all of his business time and attention to
the business  affairs of the Company (except for reasonable  vacation  periods
subject  to the  reasonable  approval  of the Board or  reasonable  periods of
illness or other incapacity). During the Employment Period, Employee agrees to
render  such  services as the Board may from time to time  direct.  During the
Employment  Period,  Employee  agrees that he will not,  except with the prior
written consent of the Board or President of the Company, become engaged in or
render services for any business other than the business of the Company.

         4. Termination.  The Employment Period will continue from the date of
this Agreement for a period of twenty-four (24) months, unless extended by the
mutual agreement of the Company and Employee or unless  terminated  earlier by
(a) Employee's death or permanent disability which renders the Employee unable
to  perform  his  duties  hereunder  (as  determined  by the  provider  of the
Company's  disability  insurance  under the terms of the Company's  disability
insurance policy), (b) by Employee's  resignation upon prior written notice to
the Company of sixty (60) days or (c) the Board for Cause. For purpose of this
paragraph  4,  "Cause"  shall mean (i) the  failure or refusal of  Employee to
follow the lawful directives of the Board or its designee (except due to
sickness,  injury  or  disabilities),  (ii)  inattention  to duty or any other
willful, reckless or negligent act (or omission to act) by Employee, which, in
the  good  faith  judgment  of the  Board,  materially  injures  the  Company,
including  the failure to follow the policies and  procedures  of the Company,
(iii) a material  breach of this  Agreement  by  Employee  or (iv) the  
commission  by Employee  of a  felony  or  other  crime  involving  moral  
turpitude  or  the commission by Employee of an act of financial dishonesty 
against the Company.


                                     



         5.  Non-Compete.

     (a) The non-compete provisions of this paragraph 5 will apply to Employee
during the Employment  Period and upon the expiration of the Employment Period
or the earlier  termination of the Employment  Period under paragraphs 4(b) or
4(c) above. In the event the Employment Period is earlier  terminated  without
Cause, then no part of this paragraph 5 will apply to Employee.

     (b)  Employee  recognizes  and  acknowledges  that by virtue of accepting
employment  hereunder,  Employee will acquire valuable knowledge,  enhance his
professional  skills and experience,  and learn  proprietary trade secrets and
Confidential  Information  (as  hereinafter  defined  in  paragraph  6) of the
Company.  In  consideration  of the  foregoing and this  employment  contract,
Employee  agrees  that  during  the  Employment  Period  and for two (2) years
thereafter  (the  "Non-Compete   Period"),   Employee  will  not  directly  or
indirectly  (i)  request,  induce or attempt to  influence  any then  existing
client,  customer or supplier of the Company to curtail any business  they are
currently, or in the last 36 months have been, transacting with the Company or
Merex, Inc.; (ii) disturb,  or attempt to disturb,  any business  relationship
between  any third  party and the  Company or Merex,  Inc.;  or (iii) make any
statement to any third party,  including the press or media,  likely to result
in adverse  publicity  for the Company or Merex,  Inc.  (the "Non-  Compete").
Furthermore,  during the Non-Compete  Period,  Employee shall not, without the
Company's prior written consent, directly or indirectly, solicit, encourage or
attempt to influence  any employee to leave the  employment  of the Company or
Merex,  Inc.  Employee  agrees  that  for a one (1)  year  period  immediately
following the Employment  Period,  Employee shall not employ any person who is
or was an  employee  of the Company or Merex,  Inc.  Employee  agrees that the
restraint imposed under this paragraph 5 is reasonable and not unduly harsh or
oppressive.  

     (c) If, at the time of  enforcement  of any  provision of paragraph  5(b)
above, a court or arbitrator  holds that the  restrictions  stated therein are
unreasonable under circumstances then existing, the Company and Employee agree
that the maximum period,  scope, or  geographical  area reasonable  under such
circumstances will be substituted for the stated period, scope or area.

     (d)  Since  a  material  purpose  of this  Agreement  is to  protect  the
Company's  investment  in the  Employee  and to  secure  the  benefits  of his
background  and general  experience in the industry,  the parties hereto agree
and  acknowledge  that money  damages  may not be an  adequate  remedy for any
breach of the  provisions of this  paragraph 5.  Therefore,  in the event of a
breach by Employee of any of the  provisions of this  paragraph 5, the Company
or its  successors  or assigns  may, in addition to other  rights and remedies
existing  in its  favor,  apply to any  court of law or  equity  of  competent
jurisdiction  for specific  performance  and/or  injunctive or other relief in
order  to  enforce  or  prevent  any  violations  of the  provisions  of  this
Agreement.

         6.   Confidential   Information.   Employee   acknowledges  that  the
information, observations, data and trade secrets (collectively, "Confidential
Information")  obtained by him during the course of his performance under this
Agreement  concerning  the business or affairs of the Company are the property
of the  Company.  For purposes of this  Agreement,  "trade  secret"  means any
method,  program or compilation of information  which is used in the Company's
business,  including but not limited to: (a)  techniques,  plans and materials
used by the  Company,  (b)  business  and  marketing  methods  and  strategies
employed by the Company,  (c) all computer hardware and software  developed or
utilized by the Company in its business and (d) all lists of past,  present or
prospective  clients,  customers and suppliers of the Company. For purposes of
this Agreement, all such Confidential Information of the Company shall include
all Confidential  Information of Merex,  Inc. Employee agrees that he will not
disclose  to any  unauthorized  Person or use for his own  account any of such
Confidential  Information  without the Board's written consent,  unless and to
the extent that the aforementioned matters become generally known to and


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available for use by the public other than as a result of  Employee's  acts or
omissions to act or become known to Employee lawfully outside the scope of his
employment under this Agreement.  Employee agrees to deliver to the Company at
the  termination  of his  employment,  or at any other  time the  Company  may
request,  all memoranda,  notes, plans,  records,  reports and other documents
(and copies thereof) relating to the business of the Company which he may then
possess or have under his control.

         7. Notices.  Any notice  provided for in this  Agreement  shall be in
writing and shall be either  personally  delivered,  sent by overnight courier
(e.g.,  Federal  Express)  or mailed by first  class  certified  mail,  return
receipt requested, to the recipient at the address below indicated:

         To the Company:             Infodata Systems Inc.
                                     12150 Monument Drive, Suite 400
                                     Fairfax, Virginia  22033
                                     Attention: Mr. Harry Kaplowitz, President

         To Employee:                Andrew M. Fregly
                                     3151 K Covewood Court
                                     Falls Church, Virginia  22042

or such other address or to the attention of such other Person as
the  recipient  party  shall have  specified  by prior  written  notice to the
sending  party.  Any notice under this  Agreement  will be deemed to have been
given when so delivered, sent or mailed.

         8. Miscellaneous. Whenever possible, each provision of this Agreement
will  be  interpreted  in such  manner  as to be  effective  and  valid  under
applicable  law. The parties agree that (i) the  provisions of this  Agreement
shall be severable in the event that any of the provisions  hereof are for any
reason whatsoever invalid, void or otherwise unenforceable, (ii) such invalid,
void or otherwise unenforceable  provisions shall be automatically replaced by
other  provisions  which are as similar as possible in terms to such  invalid,
void or otherwise  unenforceable  provisions but are valid and enforceable and
(iii) the remaining  provisions shall remain enforceable to the fullest extent
permitted  by  law.  This  Agreement   embodies  the  complete  agreement  and
understanding among the parties and supersedes and preempts any prior
understandings, agreements or representations by or among the parties, written
or oral,  which may have related to the subject matter hereof in any way. This
Agreement may be executed on separate counterparts, each of which is deemed to
be an original  and all of which taken  together  constitute  one and the same
agreement.  This Agreement is intended to bind and inure to the benefit of and
be enforceable by Employee and the Company,  and their  respective  successors
and assigns.  Employee  may not assign his rights or delegate his  obligations
hereunder  without the prior written  consent of the Company.  The Company may
assign its rights and  delegate  its duties  hereunder  without the consent of
Employee to Permitted Transferees.  All questions concerning the construction,
validity and  interpretation of the Agreement will be governed by the internal
law, and not the law of conflicts,  of the State of Virginia. Any provision of
this Agreement may be amended or waived only with the prior written consent of
the Company and Employee.



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     9.  Definitions.  "Person"  shall  mean  and  include  an  individual,  a
partnership,  a joint  venture,  a  corporation,  a trust,  an  unincorporated
organization  and a governmental  entity or any department or agency  thereof.
"Permitted  Transferee"shall mean (a) any successor by merger or consolidation
to the  Company  or any  Permitted  Transferee;  (b) any  purchaser  of all or
substantially all of the Company's or any Permitted  Transferee's  assets; and
(c) any lender to (i) the Company,  (ii) any Permitted Transferee and/or (iii)
any affiliate of the Company or of any Permitted Transferee.



         IN WITNESS  WHEREOF,  the parties have executed this Agreement on the
day and year first above written.

INFODATA SYSTEMS INC.


By:/s/Harry Kaplowitz                 /s/Andrew M. Fregly
   -----------------                  -------------------
   Harry Kaplowitz                    Andrew M. Fregly
   President




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