These functions provide access to the parallel printer ports (LPT1, etc.) The printer port addresses are stored starting at 0040:0008. Printer time-out intervals start at 0040:0078. See BIOS Data Area. AH BIOS Service ▀▀▀ ▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀ 00H print a character 01H setup printer port 02H query printer status Note: The BIOS offers no support for bidirectional parallel communications (though standard PC hardware has supported it since about 1987). See Also: Parallel Printer Adapter Ports INT 05H (print screen) Printer Functions (DOS fns) BIOS Data Area ROM-BIOS Functions Cables and Pin Outs -♦-