A brief glimpse into the past

Ralf Brown's Interrupt List

Ralf Brown's Interrupt List is a comprehensive list of interrupts, calls, hooks, interfaces, data structures, CMOS settings, memory and port addresses, as well as processor opcodes and special function registers for x86 machines (including many clones) from the very start of the PC era in 1981 up to 2000, most of it still applying to PCs today.