( ) . .
.
, , n , .. 2n, .
, (. 4.7).
640 | 384 | ||
64 | 576 | 256 | 128 . |
. 4.7. 1-
, , . , , , 16 . 4.8.
. 4.8.
: , 1024 0 1024 - 1, , -.
- , , .
. , , .
( Conventional Memory Area) 0 640 .
640 1024 (UMA - Upper Memory Area). () . "", .
1024 .
.
, :
XMS ( e x tended Memory Area);
EMS ( Expanded Memory).
XMS (e x tended Memory Specification) (extended Memory Manager). , , , Extended Expanded , .
|
|
EMS (Expanded Memory Specification) . Expanded Memory . , , . , EMS, , Expanded Memory (EM) . EMM386.EXE (Expanded Memory Manager) QEMM.
. () .
64- 1024 1088 ( , : High Memory Area), HIMEM.SYS (High Memory Manager) XMS. .
. (virtual , ). .