Ctrl+alt+delete was a separate interrupt line direct from the keyboard. That is, when you pressed the three keys, the interrupt signal was asserted, causing the CPU to jump to the interrupt service routine, which should be in the source code package.

[–] billgamesh@lemmy.ml 2 points 7 months ago (1 children)

is it in the source code, or is it just passed right to BIOS?

[–] uid0gid0@lemmy.world 5 points 7 months ago* (last edited 7 months ago) (1 children)

It was originally a BIOS interrupt, but eventually got captured by the OS. Here's Dave Bradley talking about inventing it https://m.youtube.com/watch?v=K_lg7w8gAXQ

[–] Telodzrum@lemmy.world 1 points 7 months ago

Bill does not think that is funny.