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A > ACORN COMPUTER  > Archimedes A3020   

Acorn Computer
Archimedes A3020

The Acorn Archimedes A3000 was replaced by the Acorn A3010 and A3020, two simililar but slightly different models, aimed at the home and educational markets.

The A3020 was a lower-cost replacement for A3000 aimed at British classrooms. The case was slightly shorter at the back and an awkward to reach mouse port that was underneath the A3000 was moved to the back.

The RISC OS 3 operating system and more curved Logitech-built 3 button mouse used on the A4000/A5000/A4 were included as standard, as well as a 1.6MB floppy drive capable of reading all PC disks as well as the new extended Acorn 1.6MB format.

Upgrading memory to 4MB of RAM was simple with plug-in ZIP D-RAM chips.

Looking inside the machine however, Acorn have rather stupidly built-in the 220/240 volt power supply to the motherboard, making conversion to run on 110 volts for US and Japanese users impossible without very serious modification. If the power supply unit fails then repair would also be difficult.

The Acorn A3020 had a hard disk controller to which a standard 2.5" laptop-style hard disk could be added, and a DB-15 network port which the A3010 did not have.

Thanks to Jonathan Hayward for his help in Archimedes models.

Please consider donating your old computer / videogame system to or one of our partners from anywhere in the world (Europe, America, Asia, etc.).


If anyone is interested in these computers, I still have them, my email has changed though. It is and my website is

Tuesday 4th September 2007
Nattyfido (UK)

I have an A3000 and three A3020s. I would be willing to swap the A3000 (not working) and two of the A3020s for an Archimedes mouse. All machines have internal hard drives and are a bit grubby.

Wednesday 18th October 2006
Dean Fowler (Margate, Kent, UK)


NAME  Archimedes A3020
MANUFACTURER  Acorn Computer
TYPE  Professional Computer
ORIGIN  United Kingdom
YEAR  1992
KEYBOARD  Full-stroke PC-102 style
CPU  ARM 250 32 bit RISC
CO-PROCESSOR  MEMC (memory), VIDC (Video and Sound), IOC (I/O)
RAM  2 MB (up to 4Mb possible with socketed zip ram chips)
SOUND  8 voices
I/O PORTS  Centronics, RS423, VGA, Network, 1 expansion slot (same as A4000, A3000 and A3020)
OS  RISC OS 3.11
POWER SUPPLY  Built-in power supply unit
PRICE  £749 with floppy, £899 with a 60Mb hard disk.

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