Chapter 16. Input Devices
Keyboards
One of the most basic system components is the keyboard, which is the primary input device. It is used for entering commands and data into the system. This section looks at the keyboards available for PC-compatible systems, examining the various types of keyboards, how the keyboard functions, the keyboard-to-system interface, and keyboard troubleshooting and repair.
In the years since the introduction of the original IBM PC, IBM has created three keyboard designs for PC systems, and Microsoft has augmented one of them. These designs have become de facto standards in the industry and are shared by virtually all PC manufacturers.
The primary keyboard types are as follows:
101-key Enhanced keyboard
104-key Windows keyboard ...
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