Last call to make your voice heard! Our 2022 Developer Survey closes in less than a week. Take survey.

Retrocomputing Stack Exchange is a question and answer site for vintage-computer hobbyists interested in restoring, preserving, and using the classic computer and gaming systems of yesteryear. It only takes a minute to sign up.

Sign up to join this community
Anybody can ask a question
Anybody can answer
The best answers are voted up and rise to the top

Explore our Questions

1 vote
0 answers
77 views

What was the last 5.25-inch floppy disk drive manufactured?

14 votes
3 answers
1k views

How does the BIOS distinguish Interrupt(08h-12h) from INT instructions, vs. actual exceptions inside the CPU?

4 votes
4 answers
913 views

Intel 8080 and Altair 8800. 256 I/O ports, but only 7 free RST (interrupt subroutines) — how does it work?

20 votes
5 answers
2k views

What is the history of DE-9 joystick ports?

10 votes
3 answers
352 views

What motivated the weird boolean instruction repertoire of the PDP-11?

4 votes
1 answer
144 views

Looking for a multiline text gadget for Intuition on a 1.3 Amiga

17 votes
6 answers
5k views

Why does the x86 not have an instruction to obtain its instruction pointer?

10 votes
2 answers
1k views

What was Sinclair's intention with the Microdrive?

2 votes
1 answer
173 views

Does the Super Game Boy have any battery powered non-volatile memory?

8 votes
3 answers
387 views

Reading data of floppies from a ZX Spectrum Swift Disc

9 votes
0 answers
109 views

On the TRS-80 models I and III when is the directory track number written in the third byte of sector zero, and when in the second byte?

4 votes
0 answers
183 views

What are the safest temporary zero-page locations across all Commodore (CBM) machines?

14 votes
3 answers
912 views

Did the Oric-1 improve on the Spectrum's keyboard?

20 votes
4 answers
2k views

Can powering on/off a 1541 damage a disk left inside?

Browse more Questions