Saturday, November 12, 2011

Keyboard


Keyboard input is the most important units in a data processing with computers. The keyboard works include letters, numbers, special characters as well 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 comes from the typewriter models which are created and patented by Christopher Latham in 1868, and in 1887 produced and marketed by the Remington company. The keyboard is use now this is kind of QWERTY, in 1973, the keyboard was unveiled as a keyboard standard ISO (International Standards Organization). Number of keys on the keyboard consists of 104 keys. The keyboard now that we know has some kind of port, namely port serial, ps2, usb and wireless.


Type of Keyboard :

Keyboard Qwerty

Keyboard DVORAK

Keyboard KLOCKENBERG

The keyboard is usually used is the type QWERTY keyboard, which is shaped like keys on a typewriter. The QWERTY keyboard has four parts:
  1. typewriter key
  2. numeric keys
  3. function key
  4. special function key.




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