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                                                                       EXHIBIT 1

                             Joint Filing Agreement


           In accordance with Rule 13d-1(k)(1) under the Securities Exchange Act
of 1934, as amended, the persons named below agree to the joint filing on behalf
of each of them of a statement on Schedule 13D (including amendments thereto)
with respect to the Common Stock, no par value, of Computer Research, Inc., and
further agree that this Joint Filing Agreement be included as an Exhibit to such
joint filings. In evidence thereof, the undersigned, being duly authorized, have
executed this Joint Filing Agreement this 17th day of July, 2000.

                                       CRI ACQUISITION, INC.



                                       Signature:   /s/ Rodger O. Riney
                                                 -------------------------------
                                                   Rodger O. Riney, President,
                                                   Treasurer  and Secretary




                                       /s/ Rodger O. Riney
                                       -----------------------------------------
                                       Rodger O. Riney