Definitions for "Defense Information Systems Agency"
Keywords:  disa, dod, secretary, formerly, chiefs
a combat support agency in the Department of Defense responsible for developing and operating and supporting information systems to serve the needs of the President and the Secretary of Defense and the Joint Chiefs of Staff
DOD agency responsible for information technology and is the central manager of major portions of the Defense Information Infrastructure (DII).
Formerly called the Defense Communications Agency (DCA), this is the government agency responsible for managing the DDN portion of the Internet, including the MILNET. Currently, DISA administers the DDN, and supports the user assistance services of the DDN NIC. See also: Defense Data Network. [Source: RFC1392