Keyboard input is the most important unit in a data processing computer. The keyboard can function include letters, numbers, special characters, and as a medium for the user (users) to perform other commands are required, such as saving files and opening files. The creation of a computer keyboard from typewriter models were created and patented by Christopher Latham in 1868, and in 1887 the company manufactured and marketed by Remington. The keyboard on the use of now this is kind of QWERTY, in 1973, was unveiled as a keyboard standard keyboard ISO (International Standards Organization). The number keys on the keyboard keys numbered 104. Keyboard now that we know have some kind of port, the serial port, ps2, usb and wireless.
Types of Keyboard:
1.) QWERTY
2.) Dvorak
3.) KLOCKENBERG
Keyboard is commonly used type QWERTY keyboard, which is similar to the shape keys on a typewriter. The QWERTY keyboard has four parts:
1. typewriter key
2. numeric key
3. function key
4. special function key.
Source Indonesia :
http://belajar-komputer-mu.com/pengertian-hardware-perangkat-keras-komputer/
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