<ARTICLE>                     5
<LEGEND>
This  schedule  contains  summary  financial   information  extracted  from  the
condensed  balance  sheet,  condensed  statement  of  operations  and  condensed
statement of cash flows  included in the Company's  Form 10-K for the year ended
December  31,  1997  and is  qualified  in its  entirety  by  reference  to such
financial statements and the notes thereto.
</LEGEND>
       
                             
<PERIOD-TYPE>                   3-MOS
<FISCAL-YEAR-END>                              DEC-31-1997
<PERIOD-START>                                 JAN-01-1997
<PERIOD-END>                                   DEC-31-1997
<CASH>                                         57,195
<SECURITIES>                                   185,536
<RECEIVABLES>                                  32,315
<ALLOWANCES>                                   1,385
<INVENTORY>                                    23,790
<CURRENT-ASSETS>                               329,896
<PP&E>                                         69,046
<DEPRECIATION>                                 22,544
<TOTAL-ASSETS>                                 385,998
<CURRENT-LIABILITIES>                          43,069
<BONDS>                                        4,064
<PREFERRED-MANDATORY>                          0
<PREFERRED>                                    0
<COMMON>                                       524
<OTHER-SE>                                     338,341
<TOTAL-LIABILITY-AND-EQUITY>                   385,998
<SALES>                                        360,631
<TOTAL-REVENUES>                               360,631
<CGS>                                          163,955
<TOTAL-COSTS>                                  163,955
<OTHER-EXPENSES>                               105,480
<LOSS-PROVISION>                               0
<INTEREST-EXPENSE>                             0
<INCOME-PRETAX>                                101,377
<INCOME-TAX>                                   36,495
<INCOME-CONTINUING>                            64,882
<DISCONTINUED>                                 0
<EXTRAORDINARY>                                0
<CHANGES>                                      0
<NET-INCOME>                                   64,882
<EPS-PRIMARY>                                  1.24
<EPS-DILUTED>                                  1.15