Pc 8042 Keyboard Controller Kit

The main purpose of the keyboard controller is to provide bi-directional communication between the keyboard and the host. The use of the 8042 provided a simple way to have total control of keyboard functions without significant changes to the BIOS and without affecting those programs that bypassed BIOS and went directly to the hardware. With the implementation of the 8042 controller in AT and newer designs, additional uses have been found for this power. Many products exist that use this keyboard interface as the primary device interface, attaching devices from voice recognition to bar code and magnetic stripe readers and leaving COM and LPT ports free for other uses. This kit is your guide to the 8042 Keyboard controller, including hardware interfaces, internal operations, OS support and much more.Konzak, Gary J. is the author of 'Pc 8042 Keyboard Controller Kit', published 1994 under ISBN 9780929392219 and ISBN 0929392213.