<ARTICLE> 5 <MULTIPLIER> 1,000 <PERIOD-TYPE> 3-MOS <FISCAL-YEAR-END> DEC-31-1996 <PERIOD-END> MAR-31-1996 <CASH> 32,489 <SECURITIES> 260,943 <RECEIVABLES> 15,797 <ALLOWANCES> 0 <INVENTORY> 11,895 <CURRENT-ASSETS> 327,329 <PP&E> 174,185 <DEPRECIATION> 42,984 <TOTAL-ASSETS> 471,950 <CURRENT-LIABILITIES> 50,700 <BONDS> 39,912 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 357 <OTHER-SE> 380,981 <TOTAL-LIABILITY-AND-EQUITY> 471,950 <SALES> 34,378 <TOTAL-REVENUES> 38,843 <CGS> 4,153 <TOTAL-COSTS> 41,810 <OTHER-EXPENSES> (6) <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 515 <INCOME-PRETAX> (3,476) <INCOME-TAX> 182 <INCOME-CONTINUING> (3,658) <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> (3,658) <EPS-PRIMARY> (0.10) <EPS-DILUTED> (0.10)