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lvd
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8 votes
1 answer
472 views

PDP-8 conditional skip and 2-word instructions

9 votes
2 answers
703 views

Sinclair's microdrive -- was it based on compact cassette technologies?

15 votes
3 answers
1k views

Different escape codes for the same keyboard keys -- where did they come from?

2 votes
2 answers
496 views

What early computers were only able to print numbers?

7 votes
1 answer
390 views

What CPU architecture was first to implement 'inverted borrow' carry flag during subtractions?

6 votes
3 answers
712 views

What was the reasons for DEC engineers to choose MMU page size in VAXen?

25 votes
4 answers
3k views

Do instruction exercisers exist for 8086 and 68K (and other) CPUs?

39 votes
4 answers
4k views

What was the design rationale behind multi-port and multiple connections (and back-connections) designs of the early protocols like NFS or FTP?

14 votes
4 answers
2k views

Were there really any cost savings in Sinclair QL because of it being 8-bit design with 8-bit bus 68k CPU?

15 votes
2 answers
2k views

Why did MC6809(E) require two-phase clock consisting of two square waves shifted by 90°?

8 votes
2 answers
818 views

NES/Famicom CPU address range allowable for cartridges

2 votes
3 answers
496 views

TI-86 sound capabilities

12 votes
1 answer
395 views

What is the difference between i8080 and i8080a?