WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

  



<ARTICLE> 5
       
                                        
<PERIOD-TYPE>                              QTR-1
<FISCAL-YEAR-END>                          MAY-31-1996
<PERIOD-END>                               AUG-31-1995
<CASH>                                          88,519
<SECURITIES>                                         0
<RECEIVABLES>                                   39,023
<ALLOWANCES>                                     1,363
<INVENTORY>                                      2,777
<CURRENT-ASSETS>                               154,718
<PP&E>                                         134,996
<DEPRECIATION>                                 106,389
<TOTAL-ASSETS>                                 270,449
<CURRENT-LIABILITIES>                           54,554
<BONDS>                                              0
<COMMON>                                         2,837
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<OTHER-SE>                                     187,950
<TOTAL-LIABILITY-AND-EQUITY>                   270,449
<SALES>                                         65,625
<TOTAL-REVENUES>                                65,625
<CGS>                                           33,928
<TOTAL-COSTS>                                   58,271
<OTHER-EXPENSES>                                     0
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                 709
<INCOME-PRETAX>                                  7,772
<INCOME-TAX>                                     2,798
<INCOME-CONTINUING>                              4,974
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                     4,974
<EPS-PRIMARY>                                      .21
<EPS-DILUTED>                                      .21