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4 votes
1 answer
274 views

Intel 8275 CRTC not generating interrupts. Any way out?

30 votes
8 answers
9k views

Why did x86 support self-modifying code without explicit flushes in the 80s and 90s?

2 votes
1 answer
296 views

How can I detect a machine's cassette output as a microphone on a PC and therefore save to it?

30 votes
11 answers
9k views

Why did "protected-mode MS-DOS" never happen?

13 votes
1 answer
1k views

Did the Akiko have any other developer-useable features than Chunky-to-planar?

5 votes
3 answers
1k views

MSX's primary and secondary slots

15 votes
1 answer
1k views

"Intrusion countermeasures" in VMS 4.2

11 votes
7 answers
1k views

(In)significance of spaces in parsing Fortran IV

17 votes
3 answers
2k views

How did EBCDIC files on IBM mainframes identify newlines?

11 votes
1 answer
501 views

Where can I find info about OS/A WASP operating system for Soviet BK series computers?

18 votes
5 answers
3k views

Why did ancient Unix perform BSS segment initialization?

10 votes
2 answers
2k views

What is the earliest filesystem that is case-sensitive for filenames?

17 votes
7 answers
3k views

How did PC games reproduce PCM sounds on PC speakers using PWM when speakers had poor frequency response?

13 votes
3 answers
3k views

What was the first multi-font computer-printer?

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