<ARTICLE> 5
<RESTATED> 
<MULTIPLIER> 1,000
       
                             
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          SEP-30-1996
<PERIOD-START>                             OCT-01-1995
<PERIOD-END>                               MAR-31-1996
<CASH>                                         133,550
<SECURITIES>                                   177,914
<RECEIVABLES>                                   86,259
<ALLOWANCES>                                     4,718
<INVENTORY>                                          0
<CURRENT-ASSETS>                               418,748
<PP&E>                                         113,923
<DEPRECIATION>                                  57,761
<TOTAL-ASSETS>                                 497,786
<CURRENT-LIABILITIES>                          182,892
<BONDS>                                         19,649
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                           662
<OTHER-SE>                                     294,583
<TOTAL-LIABILITY-AND-EQUITY>                   497,786
<SALES>                                        245,227
<TOTAL-REVENUES>                               245,227
<CGS>                                           29,971
<TOTAL-COSTS>                                   29,971
<OTHER-EXPENSES>                               217,388
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                   0
<INCOME-PRETAX>                                  3,272
<INCOME-TAX>                                     3,701
<INCOME-CONTINUING>                              (429)
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                     (429)
<EPS-PRIMARY>                                   (0.01)
<EPS-DILUTED>                                   (0.01)