Editing Acorn System 3 (section)

== Configuration ==

A minimum System 3 contained:<ref name="wp" /><ref name="chris3">Whytehead, Chris. [https://chrisacorns.computinghistory.org.uk/Computers/System3.html "Acorn System 3"], Chris's Acorns / The Centre for Computing History. Source for the minimum configuration (1 MHz 6502 CPU, VDU, 8K RAM + 4K BASIC ROM, floppy-disc controller, 100K 5.25-inch drive), the 6809/FLEX option, and the Intel 8271 floppy controller.</ref>

* A 1 MHz 6502 CPU card (a 6809 card was available for running FLEX)
* A 40×25 teletext VDU card (an 80×25 card was also used)
* 8 KB RAM with a 4 KB Acorn System BASIC ROM
* A floppy-disc controller card (Intel 8271)
* One 100 KB 5.25-inch disc drive mounted in the card frame

Further Eurocards could be added as required. In 1982 the System 3 cost £775, or £1075 with power supply, casing and two further 8 KB RAM cards, plus £136 for the keyboard.<ref name="wp" />