<TABLE> <S> <C>
<ARTICLE> 5
<LEGEND> THIS SCHEDULE CONTAINS SUMMARY FINANCIAL
INFORMATION EXTRACTED FROM 10Q DATED
JUNE 30, 2000 AND IS QUALIFIED IN ITS
ENTIRETY BY REFERENCE TO SUCH FINANCIAL
STATEMENTS
<MULTIPLIER> 1,000
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> DEC-31-2000
<PERIOD-END> JUN-30-2000
<CASH> 70,585
<SECURITIES> 135,102
<RECEIVABLES> 51,352
<ALLOWANCES> 1,835
<INVENTORY> 0
<CURRENT-ASSETS> 291,127
<PP&E> 96,569
<DEPRECIATION> 63,087
<TOTAL-ASSETS> 512,365
<CURRENT-LIABILITIES> 81,750
<BONDS> 0
<COMMON> 952
0
0
<OTHER-SE> 402,420
<TOTAL-LIABILITY-AND-EQUITY> 512,365
<SALES> 113,950
<TOTAL-REVENUES> 113,950
<CGS> 80,846
<TOTAL-COSTS> 80,846
<OTHER-EXPENSES> 0
<LOSS-PROVISION> 0
<INTEREST-EXPENSE> 0
<INCOME-PRETAX> 40,634
<INCOME-TAX> 16,250
<INCOME-CONTINUING> 24,384
<DISCONTINUED> 0
<EXTRAORDINARY> 0
<CHANGES> 0
<NET-INCOME> 24,384
<EPS-BASIC> 2.57
<EPS-DILUTED> 2.56
</TABLE>
