<ARTICLE> 5 <RESTATED> <MULTIPLIER> 1,000 <PERIOD-TYPE> 3-MOS <FISCAL-YEAR-END> DEC-31-1995 <PERIOD-START> JAN-01-1995 <PERIOD-END> MAR-31-1995 <CASH> 20,712 <SECURITIES> 7,493 <RECEIVABLES> 9,569 <ALLOWANCES> (350) <INVENTORY> 2,472 <CURRENT-ASSETS> 44,593 <PP&E> 14,856 <DEPRECIATION> 4,166 <TOTAL-ASSETS> 66,157 <CURRENT-LIABILITIES> 4,878 <BONDS> 0 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 7 <OTHER-SE> 55,874 <TOTAL-LIABILITY-AND-EQUITY> 66,157 <SALES> 17,459 <TOTAL-REVENUES> 17,459 <CGS> 7,291 <TOTAL-COSTS> 13,779 <OTHER-EXPENSES> (246) <LOSS-PROVISION> 0 <INTEREST-EXPENSE> (100) <INCOME-PRETAX> 3,689 <INCOME-TAX> 1,427 <INCOME-CONTINUING> 2,262 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 2,262 <EPS-PRIMARY> 0.30 <EPS-DILUTED> 0.29