<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-Q for the three month
period  ended march 31, 1998 and is  qualified  in its  entirety by reference to
such financial statements and notes thereto.
</LEGEND>
       
                             
<PERIOD-TYPE>                   3-MOS
<FISCAL-YEAR-END>               DEC-31-1998
<PERIOD-START>                  JAN-01-1998
<PERIOD-END>                    MAR-31-1998
<CASH>                                         58,988
<SECURITIES>                                  185,257
<RECEIVABLES>                                  38,657
<ALLOWANCES>                                      588
<INVENTORY>                                    23,305
<CURRENT-ASSETS>                              343,582
<PP&E>                                         72,932
<DEPRECIATION>                                 25,038
<TOTAL-ASSETS>                                400,719 
<CURRENT-LIABILITIES>                          53,327
<BONDS>                                         4,064
<PREFERRED-MANDATORY>                               0
<PREFERRED>                                         0
<COMMON>                                          526
<OTHER-SE>                                    342,802
<TOTAL-LIABILITY-AND-EQUITY>                  400,719
<SALES>                                        82,523
<TOTAL-REVENUES>                               82,523
<CGS>                                          45,356
<TOTAL-COSTS>                                  45,356
<OTHER-EXPENSES>                               32,867
<LOSS-PROVISION>                                   44
<INTEREST-EXPENSE>                              2,461
<INCOME-PRETAX>                                 6,521
<INCOME-TAX>                                    2,348
<INCOME-CONTINUING>                             4,173
<DISCONTINUED>                                      0
<EXTRAORDINARY>                                     0
<CHANGES>                                           0
<NET-INCOME>                                    4,173
<EPS-PRIMARY>                                     .08
<EPS-DILUTED>                                     .08