<ARTICLE> 5
<MULTIPLIER> 1,000
       
                                                                       
<PERIOD-TYPE>                   3-MOS                   3-MOS                   3-MOS
<FISCAL-YEAR-END>                          JAN-31-1998             JAN-31-1998             JAN-31-1998
<PERIOD-END>                               APR-30-1997             JUL-31-1997             OCT-31-1997
<CASH>                                          49,189                  37,166                  43,024
<SECURITIES>                                   140,313                 187,965                 169,956
<RECEIVABLES>                                   83,654                  96,073                  85,872
<ALLOWANCES>                                    10,260                  10,214                   7,527
<INVENTORY>                                      7,152                   6,548                   6,397
<CURRENT-ASSETS>                               325,157                 371,948                 351,667
<PP&E>                                         127,180                 130,377                 135,687
<DEPRECIATION>                                  81,937                  87,318                  94,040
<TOTAL-ASSETS>                                 543,320                 577,858                 568,966
<CURRENT-LIABILITIES>                          171,895                 189,633                 197,751
<BONDS>                                              0                       0                       0
<PREFERRED-MANDATORY>                                0                       0                       0
<PREFERRED>                                          0                       0                       0
<COMMON>                                       245,460                 263,317                 304,153
<OTHER-SE>                                      25,576                  25,921                  34,068
<TOTAL-LIABILITY-AND-EQUITY>                   543,320                 577,858                 568,966
<SALES>                                        118,984                 154,096                 162,195
<TOTAL-REVENUES>                               118,984                 154,096                 162,195
<CGS>                                           16,041                  18,725                  17,512
<TOTAL-COSTS>                                  156,378                 109,229                 114,451
<OTHER-EXPENSES>                                     0                       0                       0
<LOSS-PROVISION>                                   361                     673                     106
<INTEREST-EXPENSE>                                   0                       0                       0
<INCOME-PRETAX>                                (51,421)                 27,868                  32,743
<INCOME-TAX>                                    (1,324)                 10,033                  11,787
<INCOME-CONTINUING>                            (52,745)                 17,835                  20,956
<DISCONTINUED>                                       0                       0                       0
<EXTRAORDINARY>                                      0                       0                       0
<CHANGES>                                            0                       0                       0
<NET-INCOME>                                   (52,745)                 17,835                  20,956
<EPS-PRIMARY>                                    (1.15)                   0.37                    0.44
<EPS-DILUTED>                                    (1.15)                   0.34                    0.41