Acorn System 1

Last updated
Acorn Microcomputer
Acorn-System-1-Front-Board.jpg
Upper board, featuring keypad and LED display.
Developer Acorn Computers
Type 8-bit semi-professional
Release dateMarch 1979;44 years ago (1979-03) [1]
Introductory price£65 (kit), £75 (assembled) [2]
CPU 6502 @ 1MHz
Memory1152 bytes
StorageCUTS cassette tape interface
Display LED
Graphics-
Sound-
Input25-key keypad
Controller input-
ConnectivityINS8154 RAMIO Expansion chip (optional), CUTS cassette tape interface, socket for optional additional ROM/EPROM
Power7.5V+ from external PSU through onboard 5V regulator
Dimensions160 x 100mm two stacked boards
Successor Acorn System 2, Acorn Atom

The Acorn System 1, initially called the Acorn Microcomputer (Micro-Computer), was an early 8-bit microcomputer for hobbyists, based on the MOS 6502 CPU, and produced by British company Acorn Computers from 1979.

Contents

The main parts of the system were designed by then-Cambridge-undergraduate student Sophie Wilson, [3] with a cassette interface designed by Steve Furber. [4] It was Acorn's first product, and was based on an automated cow feeder. [3] [ disputed ]

It was a small machine built on two Eurocard-standard circuit boards and it could be purchased ready-built or in kit form.

Acorn System 1 Rear (CPU) Board Acorn-System-1-Rear-Board.jpg
Acorn System 1 Rear (CPU) Board

Main Components (left to right)

Almost all CPU signals were accessible via the standard Eurocard connector on the right-hand side of the board. This connector was not fitted/supplied as standard with the kit version.

The System 1 front board was used as the control panel for the fictional computer Slave in the 1981 series of the BBC science-fiction series Blake's 7.

See also

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References

  1. Meyer, David (November 19, 2010). "Dead IT giants: A top 10 of the fallen". ZDNet . Retrieved March 7, 2012.
  2. "ACORN COMPUTERS. PRICE LIST MARCH 1979". Acorn Computers. March 1979. Retrieved March 7, 2012.
  3. 1 2 Goodwins, Rupert (April 25, 2011). "Acorns land at Bletchley Park: PHOTO Acorn System 1". ZDNet . Retrieved November 23, 2011. Acorn's first product was the Acorn System 1, based on an automated cow feeder designed by Sophie (nee Roger) Wilson as part of her degree course at Cambridge in 1977.
  4. http://www.stairwaytohell.com/articles/SG-SophieWilson.html Sophie Wilson - 2007 Interview with Stuart Goodwin