• Fn key can also refer to the function keys on a computer keyboard.

Fn is a modifier key on PC keyboards used in a compact layout to combine keys which are usually kept separate. It is typically found on laptops, since a full sized keyboard would be difficult to fit in a laptop chassis. A function key is a key on a computer or terminal keyboard which can be programmed so as to cause an operating system command interpreter or application program to perform certain actions. ... A computer keyboard is a peripheral modeled after the typewriter keyboard. ... In computing, a modifier key is a special key on a computer keyboard that modifies the normal action of another key when the two are pressed in combination. ... Personal computer and peripherals. ... A computer keyboard is a peripheral modeled after the typewriter keyboard. ... Computers and other typing devices offer many different keyboard layouts, for people to be able to input data in different languages. ... Laptop with touchpad. ...

Compact layouts

Typically, in a compact layout the main area of the keyboard (containing the letter keys) is kept in much the same layout as with a full-sized keyboard, and the numeric keypad is moved to share a group of central keys. This allows typists to enter text without having to learn a new layout. The symbol that is accessed through pressing Fn is often printed on the key in a smaller font or different colour. This is a disambiguation page — a navigational aid which lists other pages that might otherwise share the same title. ... A data entry clerk is a member of staff who reads hand-written or printed records and types them into a computer. ...

This 78-key UK layout is taken from the Apple iBook. Characters in blue are accessed through the Fn key. Computers and other typing devices offer many different keyboard layouts, for people to be able to input data in different languages. ... Apple Computer, Inc. ... Following the success of the iMac and its ongoing hardware simplification strategy, Apple Computer introduced the iBook, a laptop computer targeted to consumer and education market segments. ...

Technical details

Unlike other modifier keys such as Shift or AltGr, the control processor inside the keyboard typically sends out a different keycode depending on whether the Fn key is depressed. This allows the keyboard to emulate a full sized keyboard and means that specialised keymaps do not need to be created; the operating system can use standard keymaps designed for a full sized keyboard. The Shift key is either of two modifier keys on the QWERTY computer keyboard, located on the edges of the row below the home row, used to type an alternate upper character, when there are upper and lower characters shown on a key. ... AltGr is a modifier key on PC keyboards used to type many characters, primarily ones that are unusual for the locale of the keyboard layout, such as foreign currency symbols and accented letters. ... A microcontroller (MCU) is a computer-on-a-chip used to control electronic devices. ... This article is about emulation in computer science. ... An operating system is a program required for the user to manage the system and to run third-party application software for that system. ...