INT 19 - SYSTEM - BOOTSTRAP LOADER
INT 1A - TIME
INT 1B - KEYBOARD - CONTROL-BREAK HANDLER
INT 1C - TIME - SYSTEM TIMER TICK
INT 1D - SYSTEM DATA - VIDEO PARAMETER TABLES
INT 1E - SYSTEM DATA - DISKETTE PARAMETERS
INT 1F - SYSTEM DATA - 8x8 GRAPHICS FONT
INT 20 - DOS 1+ - TERMINATE PROGRAM
INT 21 - DOS 1+ - Function Calls
INT 22 - DOS 1+ - PROGRAM TERMINATION ADDRESS
INT 23 - DOS 1+ - CONTROL-C/CONTROL-BREAK HANDLER
INT 24 - DOS 1+ - CRITICAL ERROR HANDLER
INT 25 - DOS 1+ - ABSOLUTE DISK READ
INT 26 - DOS 1+ - ABSOLUTE DISK WRITE
INT 27 - DOS 1+ - TERMINATE AND STAY RESIDENT
INT 28 - DOS 2+ - DOS IDLE INTERRUPT
INT 29 - DOS 2+ - FAST CONSOLE OUTPUT
INT 2A - NETBIOS
INT 2B - DOS 2+ - RESERVED
INT 2C - DOS 2+ - RESERVED
INT 2D - DOS 2+ - RESERVED
INT 2E - DOS 2+ - PASS COMMAND TO COMMAND INTERPRETER FOR EXECUTION
INT 2F - Multiplex
INT 30 - (NOT A VECTOR!) - DOS 1+ - FAR JMP instruction
INT 31 - overwritten by CP/M jump instruction in INT 30