The break, arrow, and copy keys could function as F10–F15. BBC Micro: red/orange keys F 0 to F 9 in a horizontal row above the number keys on top of the computer/keyboard.Atari ST: ten parallelogram-shaped keys in a horizontal row across the top of the keyboard, inset into the keyboard frame instead of popping up like normal keys.Atari 1200XL had four additional keys labeled F1 through F4 with pre-defined actions, mainly related to cursor movement. Atari 8-bit family (400/800/XL/XE): four dedicated keys (Reset, Option, Select, Start) at the right hand side or on the top of the keyboard the XL models also had a Help key.Apricot PC/Xi: six unlabelled keys, each with an LED beside it which illuminates when the key can be used above the keys is a liquid crystal display-the 'microscreen'-that is used by programs to display the action performed by the key.For the most part, Mac laptops have keys F1 through F12, with pre-defined actions for some, including controlling sound volume and screen brightness. Apple Macintosh notebooks: Function keys were not standard on Apple notebook hardware until the introduction of the PowerBook 5300 and the PowerBook 190.Former keyboards and Apple Keyboard with numeric keypad has the F1–F19 keys. The most recent Mac keyboards include 19 function keys, but keys F1–F4 and F7–F12 by default control features such as volume, media control, and Exposé. Current Mac keyboards include specialized function keys for controlling sound volume. According to the Macintosh Human Interface Guidelines, they are reserved for customization by the user. They have not traditionally been a major part of the Mac user interface, however, and are generally only used on cross-platform programs. Since the introduction of the Apple Extended Keyboard with the Macintosh II, however, keyboards with function keys have been available, though they did not become standard until the mid-1990s.
#FUNCTION KEYS ON MAC KEYBOARD ON WINDOWS MAC OS#
Apple Macintosh: The classic Mac OS supported system extensions known generally as FKEYS which could be installed in the System file and could be accessed with a Command-Shift-(number) keystroke combination (Command-Shift-3 was the screen capture function included with the system, and was installed as an FKEY) however, early Macintosh keyboards did not support numbered function keys in the normal sense.
#FUNCTION KEYS ON MAC KEYBOARD ON WINDOWS PC#
The original IBM PC keyboard ( PC/XT, 1981) had 10 function keys (F1–F10) in a 2×5 matrix at the left of the keyboard this was replaced by 12 keys in 3 blocks of 4 at the top of the keyboard in the Model M ("Enhanced", 1984). Later models replaced this with a numeric keypad, and moved the function keys to 24 keys at the top of the keyboard. IBM use of function keys dates to the IBM 3270 line of terminals, specifically the IBM 3277 (1972) with 78-key typewriter keyboard or operator console keyboard version, which both featured 12 programmed function (PF) keys in a 3×4 matrix at the right of the keyboard. Their modern use may have been popularized by IBM keyboards: first the IBM 3270 terminals, then the IBM PC. NEC's PC-8001, introduced in 1979, featured five function keys at the top of the keyboard, along with a numeric keypad on the right-hand side of the keyboard. HP continued its use of function keys in the HP 2640 (1975), which used screen-labeled function keys, placing the keys close to the screen, where labels could be displayed for their function. The HP 9830A (1972) was an early desktop computer, and one of the earliest specifically computing uses.
In computing use, they were found on the HP 9810A calculator (1971) and later models of the HP 9800 series, which featured 10 programmable keys in 5×2 block (2 rows of 5 keys) at the top left of the keyboard, with paper labels. Soft keys date to avionics multi-function displays of military planes of the late 1960s/early 1970s, such as the Mark II avionics of the F-111D (first ordered 1967, delivered 1970–73). The interpretation of the function keys was determined by the programming of a plugboard inside the back of the machine. Although the Flexowriter could be used as a computer terminal, this electromechanical typewriter was primarily intended as a stand-alone word processing system. The Singer/Friden 2201 Flexowriter Programatic, introduced in 1965, had a cluster of 13 function keys, labeled F1 to F13 to the right of the main keyboard. HP 9830A (1972) with 5×2 grid of 10 function keys at top left
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