<ARTICLE> 5
<LEGEND>
This schedule contains summary financial information extracted from the
Statement of Financial Position at March 31, 1996 and Statement of Income for
the Three Months ended March 31, 1996 and is qualified in its entirety by
reference to such financial statements.
</LEGEND>
<MULTIPLIER> 1,000
       
                             
<PERIOD-TYPE>                   3-MOS
<FISCAL-YEAR-END>                          DEC-31-1996
<PERIOD-START>                             JAN-01-1996
<PERIOD-END>                               MAR-31-1996
<CASH>                                          37,328
<SECURITIES>                                    73,921
<RECEIVABLES>                                   92,684
<ALLOWANCES>                                     6,206
<INVENTORY>                                     17,350
<CURRENT-ASSETS>                               232,729
<PP&E>                                          90,539
<DEPRECIATION>                                  51,265
<TOTAL-ASSETS>                                 329,037
<CURRENT-LIABILITIES>                           80,836
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                        41,432
<OTHER-SE>                                     174,157
<TOTAL-LIABILITY-AND-EQUITY>                   329,037
<SALES>                                              0
<TOTAL-REVENUES>                               142,502
<CGS>                                                0
<TOTAL-COSTS>                                   79,374
<OTHER-EXPENSES>                                52,826
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                   0
<INCOME-PRETAX>                                 10,302
<INCOME-TAX>                                     3,915
<INCOME-CONTINUING>                              6,387
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                     6,387
<EPS-PRIMARY>                                      .18
<EPS-DILUTED>                                      .18