<PAGE>

                                                  Registration No. 333-_______

                      SECURITIES AND EXCHANGE COMMISSION
                            WASHINGTON, D.C. 20549
                             ____________________

                                   FORM S-8

                            REGISTRATION STATEMENT
                                     UNDER
                          THE SECURITIES ACT OF 1933
                          __________________________

                                EMC CORPORATION
            (Exact Name of Registrant as Specified in Its Charter)

             Massachusetts                                 04-2680009
     (State or Other Jurisdiction                       (I.R.S. Employer
   of Incorporation or Organization)                   Identification No.)

                    EMC Corporation 1993 Stock Option Plan

                          Common Stock Option Program
                          ___________________________

                           (Full Title of the Plans)
                          ___________________________

                               35 Parkwood Drive
                        Hopkinton, Massachusetts 01748
         (Address of Principal Executive Offices, Including Zip Code)
                           _________________________

                             Paul T. Dacier, Esq.
                      Vice President and General Counsel
                                EMC Corporation
                               171 South Street
                        Hopkinton, Massachusetts 01748
                                (508) 435-1000
(Name, Address and Telephone Number, Including Area Code, of Agent For Service)
                           _________________________

                        CALCULATION OF REGISTRATION FEE

<TABLE>
<CAPTION>
 ================================================================================================================================
      Title of Each Class of                 Amount to be          Proposed Maximum        Proposed Maximum        Amount of
   Securities to be Registered              Registered (1)        Offering Price Per      Aggregate Offering      Registration
                                                                       Share (2)               Price (2)            Fee (3)
---------------------------------------------------------------------------------------------------------------------------------
<S>                                     <C>                      <C>                      <C>                     <C>
1993 Stock Option Plan
---------------------------------------------------------------------------------------------------------------------------------
Common Stock, par value
  $.01 per share                        17,000,000 shares (4)            $70.21875          1,193,718,750              331,855
=================================================================================================================================
Common Stock Option Program
---------------------------------------------------------------------------------------------------------------------------------
Common Stock, par value $.01 per share      20,000 shares (5)            $70.21875              1,404,375              391
=================================================================================================================================
</TABLE>
<PAGE>

(1) This registration statement also relates to an aggregate of approximately
    44,963,167 shares of common stock, par value $.01 per share, of EMC
    Corporation ("Common Stock") previously registered and remaining unissued
    under Registration Statements on Form S-8 (Registration Nos. 33-71598,
    33-63665, 333-31471 and 333-55801), which are incorporated by reference
    herein. Also registered hereunder are such additional number of shares of
    Common Stock, presently indeterminable, as may be necessary to satisfy the
    antidilution provisions of the EMC Corporation 1993 Stock Option Plan and
    the Common Stock Option Program to which this Registration Statement
    relates.

(2) Estimated solely for the purpose of determining the registration fee
    pursuant to Rule 457(h) on the basis of the average of the high and low sale
    prices of the Common Stock on the New York Stock Exchange on October 28,
    1999.

(3) In accordance with Instruction E of Form S-8, the registration fee is being
    paid with respect to newly registered securities only.

(4) Represents shares that may be issued upon exercise of options granted under
    the EMC Corporation 1993 Stock Option Plan.

(5) Represents shares that may be issued to certain Company employees upon
    exercise of options granted pursuant to non-qualified stock option
    agreements in the form filed herewith.

                                       2
<PAGE>

                                    PART II

     EMC Corporation (the "Registrant") hereby incorporates by reference the
contents of the Registrant's Registration Statements on Form S-8 (Registration
Nos. 33-71598, 33-63665, 333-31471 and 333-55801).

                                       3
<PAGE>

Item 8.  Exhibits.

Exhibit
Number         Title of Exhibit
------         ----------------

4.1            EMC Corporation 1993 Stock Option Plan,
               as amended to date.

4.2            Form of Non-Qualified Stock Option Agreement.

5.1            Opinion of Paul T. Dacier, Esq., Vice President and
               General Counsel of EMC Corporation, as to the legality
               of the securities being registered.

23.1           Consent of PricewaterhouseCoopers LLP.

23.2           Consent of Paul T. Dacier, Esq., Vice President and
               General Counsel of EMC Corporation (contained
               in the opinion filed as Exhibit 5.1 to this Registration
               Statement).

24.1           Power of Attorney (included on the signature pages to this
               Registration Statement).

                                       4
<PAGE>

                                  SIGNATURES

     Pursuant to the requirements of the Securities Act of 1933, the Registrant
certifies that it has reasonable grounds to believe that it meets all of the
requirements for filing on Form S-8 and has duly caused this Registration
Statement to be signed on its behalf by the undersigned, thereunto duly
authorized, in the Town of Hopkinton, Commonwealth of Massachusetts on the 29th
day of October, 1999.


                                         EMC Corporation


                                         By: /s/ Paul T. Dacier
                                            --------------------------
                                            PAUL T. DACIER
                                            Vice President and General Counsel


     Each person whose signature appears below constitutes and appoints Michael
C. Ruettgers, Colin G. Patteson and Paul T. Dacier, and each of them singly, his
or her true and lawful attorney-in-fact and agent with full power of
substitution and resubstitution, for him or her and in his or her name, place
and stead, in any and all capacities, to sign any and all amendments (including
post-effective amendments) to this Registration Statement on Form S-8 to be
filed by EMC Corporation, and to file the same, with all exhibits thereto, and
other documents in connection therewith, with the Securities and Exchange
Commission, granting unto said attorneys-in-fact and agents full power and
authority to be done in and about the premises, as fully to all intents and
purposes as he or she might or could do in person, hereby ratifying and
confirming all that said attorneys-in-fact and agents, or their substitutes, may
lawfully do or cause to be done by virtue hereof.

     Pursuant to the requirements of the Securities Act of 1933, this
Registration Statement has been signed by the following persons in the
capacities and on the dates indicated.

<TABLE>
<CAPTION>
            Signatures                                 Title                                   Date
---------------------------------                ---------------------                    ----------------
<S>                                              <C>                                      <C>
   /s/ Richard J. Egan                           Chairman of the Board                    October 29, 1999
---------------------------------
       Richard J. Egan                           (Principal Executive
                                                 Officer) and Director

  /s/ Michael C. Ruettgers                       President and Chief                      October 29, 1999
---------------------------------
      Michael C. Ruettgers                       Executive Officer and
                                                 Director
</TABLE>

                                       5
<PAGE>

<TABLE>
<S>                                   <C>                              <C>
 /s/ Colin G. Patteson                Senior Vice President, Chief     October 29, 1999
----------------------------------
       Colin G. Patteson              Administrative Officer and
                                      Treasurer (Principal
                                      Financial Officer)

 /s/ William J. Teuber                Vice President and Chief         October 29, 1999
----------------------------------
       William J. Teuber, Jr.         Financial Officer
                                      (Principal Accounting
                                      Officer)

 /s/ Michael J. Cronin                Director                         October 29, 1999
----------------------------------
       Michael J. Cronin

 /s/ John R. Egan                     Director                         October 29, 1999
----------------------------------
       John R. Egan

 /s/ Maureen E. Egan                  Director                         October 29, 1999
----------------------------------
       Maureen E. Egan

 /s/ W. Paul Fitzgerald               Director                         October 29, 1999
----------------------------------
       W. Paul Fitzgerald

 /s/ Joseph F. Oliveri                Director                         October 29, 1999
----------------------------------
       Joseph F. Oliveri
</TABLE>

                                       6
<PAGE>

                                 EXHIBIT INDEX


Exhibit
Number       Title of Exhibit
------       ----------------

4.1          EMC Corporation 1993 Stock Option Plan, as amended to date.

4.2          Form of Non-Qualified Stock Option Agreement.

5.1          Opinion of Paul T. Dacier, Esq., Vice President and
             General Counsel of EMC Corporation, as to the legality
             of the securities being registered.

23.1         Consent of PricewaterhouseCoopers LLP.

23.2         Consent of Paul T. Dacier, Esq., Vice President and
             General Counsel of EMC Corporation (contained
             in the opinion filed as Exhibit 5.1 to this Registration
             Statement).

24.1         Power of Attorney (included on the signature pages to this
             Registration Statement).
[{"type": "S-8", "sequence": "1", "description": "FORM S-8", "secsgml_size_bytes": 11258}]
{"company-data": {"conformed-name": "EMC CORP", "cik": "0000790070", "assigned-sic": "3572", "irs-number": "042680009", "state-of-incorporation": "MA", "fiscal-year-end": "1231"}, "filing-values": {"form-type": "S-8", "act": "33", "file-number": "333-90329", "film-number": "99741249"}, "business-address": {"street1": "35 PARKWOOD DRIVE", "city": "HOPKINTON", "state": "MA", "zip": "01748-9103", "phone": "5084351000"}, "mail-address": {"street1": "35 PARKWOOD DRIVE", "city": "HOPKINTON", "state": "MA", "zip": "01748-9103"}}
Registration No. 333-_______

                      SECURITIES AND EXCHANGE COMMISSION
                            WASHINGTON, D.C. 20549
                             ____________________

                                   FORM S-8

                            REGISTRATION STATEMENT
                                     UNDER
                          THE SECURITIES ACT OF 1933
                          __________________________

                                EMC CORPORATION
            (Exact Name of Registrant as Specified in Its Charter)

             Massachusetts                                 04-2680009
     (State or Other Jurisdiction                       (I.R.S. Employer
   of Incorporation or Organization)                   Identification No.)

                    EMC Corporation 1993 Stock Option Plan

                          Common Stock Option Program
                          ___________________________

                           (Full Title of the Plans)
                          ___________________________

                               35 Parkwood Drive
                        Hopkinton, Massachusetts 01748
         (Address of Principal Executive Offices, Including Zip Code)
                           _________________________

                             Paul T. Dacier, Esq.
                      Vice President and General Counsel
                                EMC Corporation
                               171 South Street
                        Hopkinton, Massachusetts 01748
                                (508) 435-1000
(Name, Address and Telephone Number, Including Area Code, of Agent For Service)
                           _________________________

                        CALCULATION OF REGISTRATION FEE
================================================================================================================================
      Title of Each Class of                 Amount to be          Proposed Maximum        Proposed Maximum        Amount of
   Securities to be Registered              Registered (1)        Offering Price Per      Aggregate Offering      Registration
                                                                       Share (2)               Price (2)            Fee (3)
---------------------------------------------------------------------------------------------------------------------------------
1993 Stock Option Plan
---------------------------------------------------------------------------------------------------------------------------------
Common Stock, par value
  $.01 per share                        17,000,000 shares (4)            $70.21875          1,193,718,750              331,855
=================================================================================================================================
Common Stock Option Program
---------------------------------------------------------------------------------------------------------------------------------
Common Stock, par value $.01 per share      20,000 shares (5)            $70.21875              1,404,375              391
=================================================================================================================================
(1) This registration statement also relates to an aggregate of approximately
    44,963,167 shares of common stock, par value $.01 per share, of EMC
    Corporation ("Common Stock") previously registered and remaining unissued
    under Registration Statements on Form S-8 (Registration Nos. 33-71598,
    33-63665, 333-31471 and 333-55801), which are incorporated by reference
    herein. Also registered hereunder are such additional number of shares of
    Common Stock, presently indeterminable, as may be necessary to satisfy the
    antidilution provisions of the EMC Corporation 1993 Stock Option Plan and
    the Common Stock Option Program to which this Registration Statement
    relates.

(2) Estimated solely for the purpose of determining the registration fee
    pursuant to Rule 457(h) on the basis of the average of the high and low sale
    prices of the Common Stock on the New York Stock Exchange on October 28,
    1999.

(3) In accordance with Instruction E of Form S-8, the registration fee is being
    paid with respect to newly registered securities only.

(4) Represents shares that may be issued upon exercise of options granted under
    the EMC Corporation 1993 Stock Option Plan.

(5) Represents shares that may be issued to certain Company employees upon
    exercise of options granted pursuant to non-qualified stock option
    agreements in the form filed herewith.

                                       2
PART II

     EMC Corporation (the "Registrant") hereby incorporates by reference the
contents of the Registrant's Registration Statements on Form S-8 (Registration
Nos. 33-71598, 33-63665, 333-31471 and 333-55801).

                                       3
Item 8.  Exhibits.

Exhibit
Number         Title of Exhibit
------         ----------------

4.1            EMC Corporation 1993 Stock Option Plan,
               as amended to date.

4.2            Form of Non-Qualified Stock Option Agreement.

5.1            Opinion of Paul T. Dacier, Esq., Vice President and
               General Counsel of EMC Corporation, as to the legality
               of the securities being registered.

23.1           Consent of PricewaterhouseCoopers LLP.

23.2           Consent of Paul T. Dacier, Esq., Vice President and
               General Counsel of EMC Corporation (contained
               in the opinion filed as Exhibit 5.1 to this Registration
               Statement).

24.1           Power of Attorney (included on the signature pages to this
               Registration Statement).

                                       4
SIGNATURES

     Pursuant to the requirements of the Securities Act of 1933, the Registrant
certifies that it has reasonable grounds to believe that it meets all of the
requirements for filing on Form S-8 and has duly caused this Registration
Statement to be signed on its behalf by the undersigned, thereunto duly
authorized, in the Town of Hopkinton, Commonwealth of Massachusetts on the 29th
day of October, 1999.

                                         EMC Corporation

                                         By: /s/ Paul T. Dacier
                                            --------------------------
                                            PAUL T. DACIER
                                            Vice President and General Counsel

     Each person whose signature appears below constitutes and appoints Michael
C. Ruettgers, Colin G. Patteson and Paul T. Dacier, and each of them singly, his
or her true and lawful attorney-in-fact and agent with full power of
substitution and resubstitution, for him or her and in his or her name, place
and stead, in any and all capacities, to sign any and all amendments (including
post-effective amendments) to this Registration Statement on Form S-8 to be
filed by EMC Corporation, and to file the same, with all exhibits thereto, and
other documents in connection therewith, with the Securities and Exchange
Commission, granting unto said attorneys-in-fact and agents full power and
authority to be done in and about the premises, as fully to all intents and
purposes as he or she might or could do in person, hereby ratifying and
confirming all that said attorneys-in-fact and agents, or their substitutes, may
lawfully do or cause to be done by virtue hereof.

     Pursuant to the requirements of the Securities Act of 1933, this
Registration Statement has been signed by the following persons in the
capacities and on the dates indicated.
Signatures                                 Title                                   Date
---------------------------------                ---------------------                    ----------------
/s/ Richard J. Egan                           Chairman of the Board                    October 29, 1999
---------------------------------
       Richard J. Egan                           (Principal Executive
                                                 Officer) and Director

  /s/ Michael C. Ruettgers                       President and Chief                      October 29, 1999
---------------------------------
      Michael C. Ruettgers                       Executive Officer and
                                                 Director
5
/s/ Colin G. Patteson                Senior Vice President, Chief     October 29, 1999
----------------------------------
       Colin G. Patteson              Administrative Officer and
                                      Treasurer (Principal
                                      Financial Officer)

 /s/ William J. Teuber                Vice President and Chief         October 29, 1999
----------------------------------
       William J. Teuber, Jr.         Financial Officer
                                      (Principal Accounting
                                      Officer)

 /s/ Michael J. Cronin                Director                         October 29, 1999
----------------------------------
       Michael J. Cronin

 /s/ John R. Egan                     Director                         October 29, 1999
----------------------------------
       John R. Egan

 /s/ Maureen E. Egan                  Director                         October 29, 1999
----------------------------------
       Maureen E. Egan

 /s/ W. Paul Fitzgerald               Director                         October 29, 1999
----------------------------------
       W. Paul Fitzgerald

 /s/ Joseph F. Oliveri                Director                         October 29, 1999
----------------------------------
       Joseph F. Oliveri
6
EXHIBIT INDEX

Exhibit
Number       Title of Exhibit
------       ----------------

4.1          EMC Corporation 1993 Stock Option Plan, as amended to date.

4.2          Form of Non-Qualified Stock Option Agreement.

5.1          Opinion of Paul T. Dacier, Esq., Vice President and
             General Counsel of EMC Corporation, as to the legality
             of the securities being registered.

23.1         Consent of PricewaterhouseCoopers LLP.

23.2         Consent of Paul T. Dacier, Esq., Vice President and
             General Counsel of EMC Corporation (contained
             in the opinion filed as Exhibit 5.1 to this Registration
             Statement).

24.1         Power of Attorney (included on the signature pages to this
             Registration Statement).