<ARTICLE> 5
<RESTATED>
<MULTIPLIER> 1,000

                                                  
<PERIOD-TYPE>                   YEAR                   YEAR
<FISCAL-YEAR-END>                          SEP-30-2000             SEP-30-1999
<PERIOD-START>                             OCT-01-1999             OCT-01-1998
<PERIOD-END>                               SEP-30-2000             SEP-30-1999
<CASH>                                         257,081                  89,941
<SECURITIES>                                   442,475                 110,245
<RECEIVABLES>                                  123,297                  72,580
<ALLOWANCES>                                    10,125                   3,500
<INVENTORY>                                     43,715                  26,931
<CURRENT-ASSETS>                               877,142                 334,515
<PP&E>                                         216,509                 134,465
<DEPRECIATION>                                  74,635                  52,616
<TOTAL-ASSETS>                               1,901,066                 543,069
<CURRENT-LIABILITIES>                           70,571                  39,052
<BONDS>                                              0                       0
<PREFERRED-MANDATORY>                                0                       0
<PREFERRED>                                          0                       0
<COMMON>                                         1,801                   1,709
<OTHER-SE>                                   1,103,601                 500,672
<TOTAL-LIABILITY-AND-EQUITY>                 1,901,066                 543,069
<SALES>                                        441,694                 281,669
<TOTAL-REVENUES>                               441,694                 281,669
<CGS>                                          150,803                 104,815
<TOTAL-COSTS>                                  380,892                 202,215
<OTHER-EXPENSES>                                     0                       0
<LOSS-PROVISION>                                     0                       0
<INTEREST-EXPENSE>                              18,548                     125
<INCOME-PRETAX>                                 81,678                  90,443
<INCOME-TAX>                                    53,789                  29,292
<INCOME-CONTINUING>                             27,889                  61,151
<DISCONTINUED>                                       0                       0
<EXTRAORDINARY>                                      0                       0
<CHANGES>                                            0                       0
<NET-INCOME>                                    27,889                  61,151
<EPS-BASIC>                                       0.16                    0.37
<EPS-DILUTED>                                     0.15                    0.34