The Singer/Friden 2201 Flexowriter Programmatic, introduced in 1965, had a cluster of 13 function keys, labeled F1 to F13 to the right of the main keyboard. History Flexowriter keyboard (1968) with 13 function keys on the right HP 9830A (1972) with 5×2 grid of 10 function keys at top left Function keys may have abbreviations or pictographic representations of default actions printed on/besides them, or they may have the more common "F-number" designations. On a standard computer keyboard, the function keys may generate a fixed, single byte code, outside the normal ASCII range, which is translated into some other configurable sequence by the keyboard device driver or interpreted directly by the application program. On some keyboards/computers, function keys may have default actions, accessible on power-on.Ī 104-key US English keyboard layout with the function keys in orangeįunction keys on a terminal may either generate short fixed sequences of characters, often beginning with the escape character ( ASCII 27), or the characters they generate may be configured by sending special character sequences to the terminal. ( Learn how and when to remove this template message)Ī function key is a key on a computer or terminal keyboard that can be programmed to cause the operating system or an application program to perform certain actions, a form of soft key. You can help by converting this article, if appropriate. This article is in list format but may read better as prose.
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