The Pc's Memory Map - HP Vectra XM5 3 User Manual

5 Technical Information

The PC's Memory Map

The PC's Memory Map
Memory Area Memory Range
Extended Memory: 1 MB to 4 MB
Extended memory 1024 KB upward
Conventional Memory: 0 KB to 1024 KB (1 MB)
384 KB Reserved 960 KB to 1024 KB
Memory Area
896 KB to 960 KB
800 KB to 896 KB
768 KB to 800 KB
640 KB to 768 KB
640 KB Base 0 KB to 640 KB
Memory Area
88 English
Hexadecimal Used By
Address Range
01000 to 0F0000 Windows Applications
0F0000 to 010000 64 KB BIOS area
0E0000 to 0F0000 64 KB (available)
0C8000 to 0E0000 96 KB available for
accessory boards
0C0000 to 0C8000 32 KB Video BIOS Area
0A0000 to 0C0000 128 KB Video Memory Area
09F000 to 0A0000 Extended BIOS Data Area
— User Application Program
Area
— MS-DOS Operating System
0500 to 0700 MS-DOS Temp Buffer
0400 to 04FF BIOS Data Area
0000 to 03FF Interrupt Vector Table