1264
Vintage
(lemmy.world)
you are viewing a single comment's thread
view the rest of the comments
view the rest of the comments
this post was submitted on 12 Aug 2025
1264 points (100.0% liked)
Programmer Humor
25713 readers
1732 users here now
Welcome to Programmer Humor!
This is a place where you can post jokes, memes, humor, etc. related to programming!
For sharing awful code theres also Programming Horror.
Rules
- Keep content in english
- No advertisements
- Posts must be related to programming or programmer topics
founded 2 years ago
MODERATORS
PS2 keyboards use interrupts rather than polling in USB, meaning every time a key is pressed the CPU stops what its doing to process it.
I'm wondering, is it still the case for mobos with Super IO?
Super IO does still use interrupts as far as I know. The PS/2 protocol is interrupt-driven, so it's not possible to use a PS/2 keyboard or mouse without interrupts.
Cool! I had no idea it was deeper than just a physical interface change.
And having to pick your IRQ when installing anything into your machine, and the weird bugs that could happen if you mucked it up.
I remember manually programming the cylinders and heads on a hdd into the bios. Kids these days got it easy
I had a little book with the settings for almost every brand and model of hard drive that existed when published.
And when the bits feel off the end and you had to wind them back on with a pencil.