<ARTICLE> 5
<LEGEND>
This schedule contains summary financial information extracted from the
Statement of Financial Position at June 30, 1996 and Statement of Income for the
Second Quarter and Six Months ended June 30, 1996 and is qualified in its
entirety by reference to such statements.
</LEGEND>
<MULTIPLIER> 1,000
       
                             
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1996
<PERIOD-START>                             JAN-01-1996
<PERIOD-END>                               JUN-30-1996
<CASH>                                          30,272
<SECURITIES>                                    83,165
<RECEIVABLES>                                   95,847
<ALLOWANCES>                                     5,021
<INVENTORY>                                     17,763
<CURRENT-ASSETS>                               234,066
<PP&E>                                          92,905
<DEPRECIATION>                                  52,628
<TOTAL-ASSETS>                                 332,253
<CURRENT-LIABILITIES>                           84,381
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                        41,030
<OTHER-SE>                                     172,799
<TOTAL-LIABILITY-AND-EQUITY>                   332,253
<SALES>                                              0
<TOTAL-REVENUES>                               320,349
<CGS>                                                0
<TOTAL-COSTS>                                  173,600
<OTHER-EXPENSES>                               115,736
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                   0
<INCOME-PRETAX>                                 31,013
<INCOME-TAX>                                    11,785
<INCOME-CONTINUING>                             19,228
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                    19,228
<EPS-PRIMARY>                                     0.54
<EPS-DILUTED>                                     0.54