IBM PC and Model F/XT Keyboard Celebrate 45th Anniversary

The Launch of the IBM PC

On August 12, 1981, IBM introduced the Personal Computer, model 5150. This event is recognized as a pivotal moment that significantly contributed to the widespread adoption of x86 architecture in both professional and home environments. The success of the IBM PC was also influenced by the compatible 'clone' market, which helped sustain the ecosystem.

The Model F/XT Keyboard

A notable component of the original IBM PC was its Model F/XT keyboard. While not universally considered to have a perfect layout, it was regarded as a competent and well-built peripheral. The keyboard's design and construction are highlighted as a contributing factor to the overall success and user experience of the IBM PC.

Precursors to the IBM PC

Before the IBM PC, IBM developed several products adjacent to personal computing and explored personal computer concepts throughout the 1970s. The PC's type number, 5150, links it to earlier systems like the 5100 Portable Computer, and the 5110 and 5120 Computing Systems. The 5100, an evolution of the 1973 SCAMP prototype, was considered portable for its time but was expensive and not widely accessible.

Early Personal Computer Concepts

IBM designer Tommy R. Hardy conceptualized several interim personal computer ideas, including 'Yellow Bird' in 1976 and 'Aquarius' in 1977. Aquarius even reached a pre-production prototype stage but was dismissed due to concerns about its use of bubble memory modules. IBM also considered acquiring Atari and using the Atari 800 as a basis for the PC after its launch in 1979.