<ARTICLE> 5 <LEGEND> THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE CONSOLIDATED BALANCE SHEET, CONSOLIDATED STATEMENT OF OPERATIONS AND CONSOLIDATED STATEMENT OF CASH FLOWS INCLUDED IN THE COMPANY'S FORM 10-Q FOR THE PERIOD ENDED JUNE 30, 1998, AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS. </LEGEND> <MULTIPLIER> 1,000 <PERIOD-TYPE> 6-MOS <FISCAL-YEAR-END> DEC-31-1998 <PERIOD-START> JAN-01-1998 <PERIOD-END> JUN-30-1998 <CASH> 18,034 <SECURITIES> 18,995 <RECEIVABLES> 18,043 <ALLOWANCES> 1,840 <INVENTORY> 5,008 <CURRENT-ASSETS> 71,071 <PP&E> 36,056 <DEPRECIATION> 22,022 <TOTAL-ASSETS> 116,046 <CURRENT-LIABILITIES> 30,162 <BONDS> 0 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 18 <OTHER-SE> 85,866 <TOTAL-LIABILITY-AND-EQUITY> 116,046 <SALES> 47,512 <TOTAL-REVENUES> 47,512 <CGS> 21,660 <TOTAL-COSTS> 21,660 <OTHER-EXPENSES> 38,224 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 66 <INCOME-PRETAX> (10,885) <INCOME-TAX> (4,463) <INCOME-CONTINUING> (6,422) <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> (6,422) <EPS-PRIMARY> (0.36) <EPS-DILUTED> (0.36)