Hardware Programming In C Working with keyboard
Normally nobody uses PC/XT (8bit) systems, we use AT (16/32/64bit) systems. So I think it is enough to explain the secrets of keyboard in AT systems. In a typical AT system, the microcontroller(8048,6805 type) in the keyboard sends data to the keyboard-controller (8042 type) on the motherboard. Controller found on the motherboard can also send …