POWER OF ATTORNEY

	Know all by these presents, that the undersigned hereby constitutes and appoints each of Barbara
E. Coluci, Jacquelyn A. Connelly, Sandra J. Brochu and June D. Duchesne, signing singly, the
undersigned's true and lawful attorney-in-fact to:

	(1)  execute for and on behalf of the undersigned, in the undersigned's capacity as an officer
and/or director of EMC Corporation (the "Company"), Forms 144 in accordance with Rule 144 of the
Securities Act of 1933 and Forms 3, 4 and 5 in accordance with Section 16(a) of the Securities
Exchange Act of 1934 and the rules thereunder;

	(2)  do and perform any and all acts for and on behalf of the undersigned which may be
necessary or desirable to complete and execute any such Form 144, 3, 4 or 5, complete and execute
any amendment or amendments thereto, and timely file (whether by mail, electronic transmission or
other acceptable means) such form with the United States Securities and Exchange Commission and
any stock exchange or similar authority; and

	(3)  take any other action of any type whatsoever in connection with the foregoing which, in the
opinion of such attorney-in-fact, may be of benefit to, in the best interest of, or legally required by, the
undersigned, it being understood that the documents executed by such attorney-in-fact on behalf of the
undersigned pursuant to this Power of Attorney shall be in such form and shall contain such terms and
conditions as such attorney-in-fact may approve in such attorney-in-fact's discretion.

	The undersigned hereby grants to each such attorney-in-fact full power and authority to do and
perform any and every act and thing whatsoever requisite, necessary, or proper to be done in the
exercise of any of the rights and powers herein granted, as fully to all intents and purposes as the
undersigned might or could do if personally present, with full power of substitution or revocation,
hereby ratifying and confirming all that such attorney-in-fact, or such attorney-in-fact's substitute or
substitutes, shall lawfully do or cause to be done by virtue of this power of attorney and the rights and
powers herein granted.  The undersigned acknowledges that the foregoing attorneys-in-fact, in serving
in such capacity at the request of the undersigned, are not assuming, nor is the Company assuming, any
of the undersigned's responsibilities to comply with Rule 144 of the Securities Act of 1933 or Section
16 of the Securities Exchange Act of 1934.

	This Power of Attorney shall remain in full force and effect until the undersigned is no longer
required to file Forms 144, 3, 4 or 5 with respect to the undersigned's holdings of and transactions in
securities issued by the Company, unless earlier revoked by the undersigned in a signed writing delivered
to the foregoing attorneys-in-fact.

	IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be executed as
of this 16th day of July, 2007.


							/s/ Joseph M. Tucci
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							Joseph M. Tucci

Witness:

/s/ Pamela M. Buote
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