extended memory specification

from The Free On-line Dictionary of Computing (8 July 2008)

Extended Memory Specification

   <storage> (XMS) The specification describing the use of {IBM
   PC} {extended memory} in {real mode} for storing data (but not
   executable code).  Memory is made available by {extended
   memory manager} (XMM) software.  The XMM functions are
   accessible through {interrupt} 2FH.

   (1996-01-10)