Suppose I have 16M physical memory in my system. Is it true that cpu accesses all the physical memory by putting 0x000000-0xffffff on its address bus? If it is true, does it mean the minimal memory requirement for DOS is 1M(because 640k-1M area is mandatory for mapping for various purposes)? And how does the mapping work?Is it something like when system power up, it reads BIOS into physical memory area reserved for BIOS mapping?
Message Edited by minwang on 10-12-2004 01:03 AM