<ARTICLE> 5 <MULTIPLIER> 1,000 <PERIOD-TYPE> 3-MOS <FISCAL-YEAR-END> DEC-31-1997 <PERIOD-END> MAR-31-1997 <CASH> 9,710 <SECURITIES> 37,555 <RECEIVABLES> 172,624 <ALLOWANCES> 0 <INVENTORY> 126,189 <CURRENT-ASSETS> 361,026 <PP&E> 416,395 <DEPRECIATION> 197,404 <TOTAL-ASSETS> 769,816 <CURRENT-LIABILITIES> 348,333 <BONDS> 0 <COMMON> 56,988 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <OTHER-SE> 47,296 <TOTAL-LIABILITY-AND-EQUITY> 769,816 <SALES> 178,839 <TOTAL-REVENUES> 178,839 <CGS> 80,015 <TOTAL-COSTS> 80,015 <OTHER-EXPENSES> 187,638 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 6,024 <INCOME-PRETAX> (92,308) <INCOME-TAX> 5,454 <INCOME-CONTINUING> (97,762) <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> (97,762) <EPS-PRIMARY> (2.25) <EPS-DILUTED> (2.25)