<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, 1999 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-31-1999 
<PERIOD-START>                                 JAN-01-1999 
<PERIOD-END>                                   MAR-31-1999 
<CASH>                                              94,671 
<SECURITIES>                                       261,180 
<RECEIVABLES>                                       67,032 
<ALLOWANCES>                                         1,436 
<INVENTORY>                                         10,319 
<CURRENT-ASSETS>                                   452,021 
<PP&E>                                              82,265 
<DEPRECIATION>                                      35,976 
<TOTAL-ASSETS>                                     507,872 
<CURRENT-LIABILITIES>                               79,295 
<BONDS>                                              3,777 
<PREFERRED-MANDATORY>                                    0 
<PREFERRED>                                              0 
<COMMON>                                               538 
<OTHER-SE>                                         324,262 
<TOTAL-LIABILITY-AND-EQUITY>                       507,872 
<SALES>                                            120,016 
<TOTAL-REVENUES>                                   120,016 
<CGS>                                               63,721 
<TOTAL-COSTS>                                       63,721 
<OTHER-EXPENSES>                                    34,016 
<LOSS-PROVISION>                                         0 
<INTEREST-EXPENSE>                                       0 
<INCOME-PRETAX>                                     25,706 
<INCOME-TAX>                                         8,740 
<INCOME-CONTINUING>                                 16,966 
<DISCONTINUED>                                           0 
<EXTRAORDINARY>                                          0 
<CHANGES>                                                0 
<NET-INCOME>                                        16,966 
<EPS-PRIMARY>                                         0.32 
<EPS-DILUTED>                                         0.31