<ARTICLE> 5
<MULTIPLIER> 1,000
       
                             
<PERIOD-TYPE>                   9-MOS
<FISCAL-YEAR-END>                          DEC-31-1998
<PERIOD-START>                             JAN-01-1998
<PERIOD-END>                               SEP-30-1998
<CASH>                                          88,409
<SECURITIES>                                   406,444
<RECEIVABLES>                                   64,667
<ALLOWANCES>                                     6,691
<INVENTORY>                                     70,039
<CURRENT-ASSETS>                               724,254
<PP&E>                                         152,981
<DEPRECIATION>                                  69,957
<TOTAL-ASSETS>                               1,031,544
<CURRENT-LIABILITIES>                          202,540
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                            97
<OTHER-SE>                                     828,907
<TOTAL-LIABILITY-AND-EQUITY>                 1,031,544
<SALES>                                        481,910
<TOTAL-REVENUES>                               481,910
<CGS>                                          184,292
<TOTAL-COSTS>                                  184,292
<OTHER-EXPENSES>                               127,715
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                   0
<INCOME-PRETAX>                                176,785
<INCOME-TAX>                                    57,451
<INCOME-CONTINUING>                            119,334
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                   111,894
<EPS-PRIMARY>                                     1.21<F1>
<EPS-DILUTED>                                     1.14
<FN>
<F1>For purposes of this Exhibit, Primary means Basic.
</FN>