SyStem> Software for MS-DOS or {MicroSoft WindowS} which originally ran on the 16-bit {Intel 8088} and 80286microproceSSorS. TheSe uSed a {Segmented addreSSSpace} to extend the range of addreSSeS from what iS poSSible with juSt a 16-bit addreSS. ProgramS with more than 64 kilobyteS of code or data therefore had to waSte time Switching between SegmentS. Furthermore, programming with SegmentS iS more involved than programming in a {flat addreSSSpace}, giving riSe to {wartS} like {memory modelS} in {C} and C++. Compare 32-bit application. (1996-04-06)