<ARTICLE> 5 <LEGEND> THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM EMC CORPORATION FINANCIAL STATEMENTS AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS. </LEGEND> <MULTIPLIER> 1,000 <PERIOD-TYPE> 9-MOS <FISCAL-YEAR-END> DEC-31-1999 <PERIOD-END> SEP-30-1999 <CASH> 678,767 <SECURITIES> 579,057 <RECEIVABLES> 1,260,744 <ALLOWANCES> 13,061 <INVENTORY> 529,857 <CURRENT-ASSETS> 3,197,400 <PP&E> 770,549 <DEPRECIATION> 475,324 <TOTAL-ASSETS> 5,657,823 <CURRENT-LIABILITIES> 816,524 <BONDS> 491,636 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 10,175 <OTHER-SE> 4,253,242 <TOTAL-LIABILITY-AND-EQUITY> 5,657,823 <SALES> 3,509,928 <TOTAL-REVENUES> 3,753,434 <CGS> 1,664,840 <TOTAL-COSTS> 2,725,403 <OTHER-EXPENSES> 0 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 6,138 <INCOME-PRETAX> 1,092,169 <INCOME-TAX> 273,043 <INCOME-CONTINUING> 819,126 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 819,126 <EPS-BASIC> .81 <EPS-DILUTED> .76