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0 pointsyuhong10y ago0 comments

the minimum was 16KB I think (they used 4116s).

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3 comments · 1 top-level

Dylan1680710y ago· 2 in thread

Well, I'm just summarizing.

> "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.)

yuhongOP10y ago

There are different configs of IBM PC, the cheapest which relied on the ROM BASIC and cassette tape.

Dylan1680710y ago

Right, but we're worried here about the ones booting DOS, while they were designing this.

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