this post was submitted on 12 Aug 2025
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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.
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.