<ARTICLE> 5 <MULTIPLIER> 1,000 <CURRENCY> U.S. DOLLARS <PERIOD-TYPE> 3-MOS <FISCAL-YEAR-END> DEC-31-2000 <PERIOD-START> JAN-01-2000 <PERIOD-END> MAR-31-2000 <EXCHANGE-RATE> 1 <CASH> 102,039 <SECURITIES> 566,791 <RECEIVABLES> 137,136 <ALLOWANCES> 1,642 <INVENTORY> 40,903 <CURRENT-ASSETS> 954,652 <PP&E> 381,699 <DEPRECIATION> 117,881 <TOTAL-ASSETS> 1,289,600 <CURRENT-LIABILITIES> 162,681 <BONDS> 51,268 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 1,512 <OTHER-SE> 1,016,266 <TOTAL-LIABILITY-AND-EQUITY> 1,289,600 <SALES> 174,596 <TOTAL-REVENUES> 216,848 <CGS> 26,034 <TOTAL-COSTS> 132,812 <OTHER-EXPENSES> 0 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 1,108 <INCOME-PRETAX> 183,060 <INCOME-TAX> 61,694 <INCOME-CONTINUING> 121,366 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 121,366 <EPS-BASIC> 0.81 <EPS-DILUTED> 0.77