<ARTICLE> 5

                             
<PERIOD-TYPE>                   9-MOS
<FISCAL-YEAR-END>                          DEC-31-2000
<PERIOD-START>                             JAN-01-2000
<PERIOD-END>                               SEP-30-2000
<CASH>                                         253,237
<SECURITIES>                                   135,602
<RECEIVABLES>                                  378,873
<ALLOWANCES>                                    21,786
<INVENTORY>                                          0
<CURRENT-ASSETS>                               808,337
<PP&E>                                         558,596
<DEPRECIATION>                                 367,138
<TOTAL-ASSETS>                               1,741,879
<CURRENT-LIABILITIES>                          353,768
<BONDS>                                          6,940
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                         1,329
<OTHER-SE>                                   1,379,842
<TOTAL-LIABILITY-AND-EQUITY>                 1,741,879
<SALES>                                              0
<TOTAL-REVENUES>                             1,198,970
<CGS>                                                0
<TOTAL-COSTS>                                  695,245
<OTHER-EXPENSES>                                 7,962
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                               1,383
<INCOME-PRETAX>                                251,947
<INCOME-TAX>                                   101,419
<INCOME-CONTINUING>                            150,528
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                   150,528
<EPS-BASIC>                                       1.14
<EPS-DILUTED>                                     1.12

<F1>Excludes selling, marketing and administration costs and all items
described in <F2>.
<F2>Merger costs, including purchased in-process research and development of
$5,206.
<F3>Includes all items described in <F2>, totaling $0.04 per both basic and
diluted share.