The BBC Microcomputer was launched in December 1981 as part of the BBC's Computer Literacy Project. The Computer Literacy Project was created by the BBC (British Broadcasting Corporation) to increase computer knowledge and usage, and to encourage as wide a range of people as possible to gain hands-on experience with a microcomputer. The BBC Micro was very successful in the UK, selling over 1.5 million units, and was widely used in schools, with the large majority of schools having one.

As part of the project the BBC wanted to commission the development of a microcomputer that could accompany the TV programmes and literature. The BBC created a list of required specifications in early 1981, with companies including Acorn Computers, Sinclair Research, Tangerine Computer Systems, NewBury Laboratories and Dragon Data showing interest in the project. Acorn's bid won in March 1981 with their Proton prototype, which was being developed as the successor to the Acorn Atom. While the BBC Micro was launched in December 1981, production problems meant that deliveries of the computer were delayed.

The BBC Microcomputer, or the 'Beeb', is based on the 6502A microprocessor, which ran at 2MHz, and has 32K of ROM. The Model A shipped with 16K RAM and cost £299. The Model B shipped with 32K RAM and cost £399. The Model B featured higher-resolution graphics due to the higher RAM. Both models used the same circuit board, therefore making it possible to upgrade a Model A to a Model B. The machine's high cost was compensated for by its impressive expansion possibilities including disc drives, a second processor and network capabilities (Econet).

The BBC Micro used the BBC BASIC programming language, a version of the BASIC programming language. It was created mainly by Sophie Wilson for the BBC Micro. 

The case was designed by Allan Boothroyd, who also worked on the RISC PC Case.

The BBC Micro is a model A and is in a heavily marked case which includes the original type internal power supply and ROM chips.

As is usual for an A most of the ports on the back are unpopulated, with only the RF, composite, RS423 and cassette ports active.

This Model A, Issue 1 is a very early machine and has a serial number of 100058.

Manufacturer: Acorn
Date: 1981

This exhibit has a reference ID of CH6515. Please quote this reference ID in any communication with the Centre for Computing History.