68Chapter 5 Appendix5-1 Memory MapAddress range Size Description00000-7FFFF 512K Conventional memory80000-9FBFF 127K Extended conventional memory9FC00-9FFFF 1K Extended BIOS data area if PS/2 mouse isinstalledA0000-C7FFF 160K Available for hi DOS memoryC8000-DFFFF 96K Available for hi DOS memory and adapterROMsE0000-EEFFF 60K Available for UMBEF000-EFFFF 4K Video service routine for monochrome &CGA adapterF0000-F7FFF 32K BIOS CMOS setup utilityF8000-FCFFF 20K BIOS runtime service routine (2)FD000-FDFFF 4K Plug and play ESCD data areaFE000-FFFFF 8K BIOS runtime service routine (1)
