AT keyboard
Alternatively referred to as the
Model F keyboard, the
AT keyboard is a US standard
keyboard introduced in
1986 by
IBM. The original version had 84-keys but was then replaced by the 101-key
enhanced keyboard. Unlike new keyboards, the AT keyboard does not include the additional three
Microsoft Windows keys now found on many IBM compatible keyboards.
An
AT keyboard may also be used to describe a keyboard that uses the AT
(Din5) port as shown in the above illustration. The Din5 Port is rarely
used today since most computers use either PS/2 or USB keyboards.
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