<ARTICLE> 5 <RESTATED> <MULTIPLIER> 1,000 <PERIOD-TYPE> 6-MOS <FISCAL-YEAR-END> DEC-31-1996 <PERIOD-START> JAN-01-1996 <PERIOD-END> JUN-30-1996 <CASH> 30,517 <SECURITIES> 10,800 <RECEIVABLES> 13,778 <ALLOWANCES> (417) <INVENTORY> 6,102 <CURRENT-ASSETS> 66,447 <PP&E> 16,472 <DEPRECIATION> 4,949 <TOTAL-ASSETS> 88,030 <CURRENT-LIABILITIES> 11,346 <BONDS> 0 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 8 <OTHER-SE> 73,275 <TOTAL-LIABILITY-AND-EQUITY> 74,238 <SALES> 41,431 <TOTAL-REVENUES> 41,431 <CGS> 19,107 <TOTAL-COSTS> 32,835 <OTHER-EXPENSES> (21) <LOSS-PROVISION> 0 <INTEREST-EXPENSE> (168) <INCOME-PRETAX> 9,287 <INCOME-TAX> 3,778 <INCOME-CONTINUING> 5,509 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 5,509 <EPS-PRIMARY> 0.71 <EPS-DILUTED> 0.69