<ARTICLE> 5 <MULTIPLIER> 1,000 <PERIOD-TYPE> 3-MOS <FISCAL-YEAR-END> DEC-31-1998 <PERIOD-START> JAN-01-1998 <PERIOD-END> MAR-31-1998 <CASH> 72,019 <SECURITIES> 131,283 <RECEIVABLES> 66,604 <ALLOWANCES> 2,722 <INVENTORY> 41,753 <CURRENT-ASSETS> 326,270 <PP&E> 48,139 <DEPRECIATION> 25,168 <TOTAL-ASSETS> 358,321 <CURRENT-LIABILITIES> 32,501 <BONDS> 0 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 2,515 <OTHER-SE> 323,305 <TOTAL-LIABILITY-AND-EQUITY> 358,321 <SALES> 74,636 <TOTAL-REVENUES> 74,636 <CGS> 0 <TOTAL-COSTS> 32,737 <OTHER-EXPENSES> 0 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 0 <INCOME-PRETAX> 15,216 <INCOME-TAX> 5,283 <INCOME-CONTINUING> 9,933 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 9,933 <EPS-PRIMARY> 0.45<F1> <EPS-DILUTED> 0.44 <FN> <F1>The amount is reported as EPS BASIC, NOT PRIMARY. </FN>