<ARTICLE> 5 <PERIOD-TYPE> 3-MOS <FISCAL-YEAR-END> DEC-31-1996 <PERIOD-END> MAR-31-1996 <CASH> 172,789 <SECURITIES> 23,922 <RECEIVABLES> 111,076 <ALLOWANCES> 0 <INVENTORY> 0 <CURRENT-ASSETS> 327,344 <PP&E> 234,646 <DEPRECIATION> (136,361) <TOTAL-ASSETS> 491,138 <CURRENT-LIABILITIES> 113,075 <BONDS> 0 <COMMON> 282,505 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <OTHER-SE> 41,150 <TOTAL-LIABILITY-AND-EQUITY> 491,138 <SALES> 108,665 <TOTAL-REVENUES> 108,665 <CGS> 31,999 <TOTAL-COSTS> 72,842 <OTHER-EXPENSES> (2,137) <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 348 <INCOME-PRETAX> 5,613 <INCOME-TAX> 840 <INCOME-CONTINUING> 4,773 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 4,773 <EPS-PRIMARY> .08 <EPS-DILUTED> .08