A driver that provides a software interface to expanded memory EMMs were originally created for expanded memory boards, but can also use the memory management capabilities of the 386 or later processors to emulate an expanded memory board EMM386 EXE is an example of an EMM that comes with DOS
Expanded Memory Manager A utility allowing DOS programs to access memory above the 1 MB limit that constrained early versions of DOS The most common example of the breed is EMM386, included with DOS 5 0 and above Windows 95 has built-in memory management and does not need EMM386 or the alternatives
Entitlement Management Messages Information pertaining to subscriber access which is transmitted along with TV programs and the other digital information
Expanded Memory Manager - Handler to use the extra memory of the computer optimal, for example used by Windows (emm386 exe) and by Quarterdeck's Expanded Memory Manager (QEMM)