<ARTICLE> 5 <MULTIPLIER> 1000 <PERIOD-TYPE> 9-MOS <FISCAL-YEAR-END> DEC-31-1994 <PERIOD-END> SEP-30-1994 <CASH> 65,510 <SECURITIES> 226,628 <RECEIVABLES> 9,870 <ALLOWANCES> 0 <INVENTORY> 0 <CURRENT-ASSETS> 309,838 <PP&E> 89,590 <DEPRECIATION> 29,699 <TOTAL-ASSETS> 379,260 <CURRENT-LIABILITIES> 58,529 <BONDS> 0 <COMMON> 331 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <OTHER-SE> 320,341 <TOTAL-LIABILITY-AND-EQUITY> 379,260 <SALES> 101,693 <TOTAL-REVENUES> 113,371 <CGS> 6,817 <TOTAL-COSTS> 96,411 <OTHER-EXPENSES> 29,461 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 0 <INCOME-PRETAX> (12,501) <INCOME-TAX> 2,080 <INCOME-CONTINUING> (14,581) <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> (14,581) <EPS-PRIMARY> (0.45) <EPS-DILUTED> (0.45)