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20 votes
4 answers
3k views

How did DoubleDOS work?

15 votes
6 answers
7k views

Why were there so many OSes that had the name "DOS" in them?

10 votes
2 answers
2k views

Were any DOS games (or software) known to use VBE/AF?

23 votes
2 answers
3k views

How can a protected-mode Watcom C program access memory that a real-mode interrupt service returned in a segment:offset register pair?

28 votes
7 answers
7k views

How did DOS games manage to have multiple background layers?

17 votes
3 answers
2k views

What was the first two-panel file manager for DOS?

16 votes
5 answers
2k views

Looking for an open source DOS .com program written in assembly

27 votes
7 answers
4k views

How can I reverse-engineer the game Wizardry (1981) for PC, based on UCSD Pascal?

29 votes
5 answers
3k views

Why HIMEM was implemented as a DOS driver and not a TSR

20 votes
7 answers
9k views

Are there any good, non-abandoned PC emulators?

12 votes
2 answers
1k views

Is there a pre-defined compiler macro for legacy Microsoft C 5.10 to get the compiler's name and version number?

47 votes
4 answers
9k views

How do DOS games like DOOM benefit from a PCI graphics card?

9 votes
1 answer
830 views

Software that emulated VGA high res mode on an EGA board

9 votes
1 answer
1k views

Identify this bouncing ball screensaver in DOS

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