Re:Why do PCs load their boot sector at 7C000h linear?
by yuhong on Saturday September 26, 2015 @02:29PM
(#10283960)
There are different configs of IBM PC, the cheapest which relied on the ROM BASIC and cassette tape.
Re:Why do PCs load their boot sector at 7C000h linear?
by Dylan16807 on Saturday September 26, 2015 @02:30PM
(#10283963)
Right, but we're worried here about the ones booting DOS, while they were designing this.
> "DOS 1.0 required a minimum of 32KB, so we weren't concerned about attempting a boot in 16KB."
> (Note: DOS 1.0 required 16KiB minimum ? or 32KiB ? I couldn't find out which correct. But, at least, in 1981's early BIOS development, they supposed that 32KiB is DOS minimum requirements.)