Editing IBM Model F (section)

===IBM System/23 Datamaster Keyboard===
{{Main|IBM 5322 System/23 Datamaster computer}}

The first Model F keyboard appeared on the IBM System/23 Datamaster, released one month before the IBM PC. It was an 83-key keyboard mounted internally in the Datamaster unit. Its physical and functional layout was similar to that of the IBM 5251 terminal. When the Datamaster's engineers subsequently designed the PC, they convinced their superiors to use the same keyboard, thus spawning Model F variants for a number of other IBM computers.

The original Datamaster system was known as the '''5322'''. In 1982, IBM launched the '''5324''' system.<ref name=ibm5324/> Amongst other differences, the newer model was not an all-in-one system, and instead had separate display, keyboard and processor units. The 5324 keyboard looks similar to the later '''5291''' terminal keyboard, except the legends on the keycaps are the same as that of the integrated keyboard on the original 5322 Datamaster system.

<gallery widths=250px heights=187 caption="IBM 5322 System/23 Datamaster">
File:Datamaster.jpg|Keyboard mounted in Datamaster unit.
</gallery>