To split hairs, it's actually DOS 2.11. MSHEAD.ASM has a version history. | Hacker News

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happycube on March 25, 2014 | parent | context | favorite | on: Microsoft makes source code for MS-DOS and Word fo...

To split hairs, it's actually DOS 2.11. MSHEAD.ASM has a version history.

wvenable on March 25, 2014 [–]

I had a handheld PC -- the Atari Portfolio -- that ran that version of DOS.

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