<ARTICLE> 5
<MULTIPLIER> 1,000
       
                             
<PERIOD-TYPE>                   3-MOS
<FISCAL-YEAR-END>                          JAN-31-1999
<PERIOD-START>                             FEB-01-1998
<PERIOD-END>                               APR-30-1998 <F1>
<CASH>                                         124,784
<SECURITIES>                                   145,232
<RECEIVABLES>                                   71,664
<ALLOWANCES>                                     7,085
<INVENTORY>                                      5,439
<CURRENT-ASSETS>                               396,558
<PP&E>                                         143,124
<DEPRECIATION>                                 104,161
<TOTAL-ASSETS>                                 623,373
<CURRENT-LIABILITIES>                          222,757
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                       342,310
<OTHER-SE>                                      55,777
<TOTAL-LIABILITY-AND-EQUITY>                   623,373
<SALES>                                        187,206
<TOTAL-REVENUES>                               187,206
<CGS>                                           19,831
<TOTAL-COSTS>                                  129,209
<OTHER-EXPENSES>                                     0
<LOSS-PROVISION>                                   339
<INTEREST-EXPENSE>                                 110
<INCOME-PRETAX>                                 40,054
<INCOME-TAX>                                    14,239
<INCOME-CONTINUING>                             25,815
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                    25,815
<EPS-PRIMARY>                                     0.56
<EPS-DILUTED>                                     0.51
<FN> 
<F1>  Certain information for the 3 months ended April 30, 1998 has been 
      restated to reflect the adjustment described at Note 1 to the Company's 
      condensed consolidated Financial Statements.
</FN>