The Machine Room
Home | Browse | Picture Archive | News | Links | Help
Status
CotW
Translate

The Machine Room is Back!
This is the recovered Machine Room from 2005. Please don't expect wonders. The look and feel of this site is nine years old, and so is its code. Some of the functionality has been recovered while the rest of the site is modernised and restructured. Watch this space!
Top :: Browse :: Acorn :: A420/1

AcornA420/1

Entry quality: 1 | Rate this entry: Unrated (0 votes). | 5089 hits | Admin: alexios
No known owners (I still own one | I used to own one). I have seen one.
Search Google or Ebay United States for Acorn A420/1 (more links, auctions & searches)
Other series members
A500, A305, A310, A410, A440, A680, M4, R140, A3000, A410/1, A420/1, A440/1, R260, R225, A540, A5000, A4, A3010, A3020, A4000, RiscPC 600 2M HD210, RiscPC 600 5M HD210, RiscPC 600 9M HD420, A7000, RiscPC 700 10M HD850, RiscPC 700 4M HD425, RiscPC 700 5M HD425, StrongARM RiscPC, CoNCord, A7000+, A7000 Expanded, A7000 Net.
Quick View
Pricing 1,699.00 GBP (United Kingdom, 1989)
Emphasis Education, Graphic Arts, Music, Programming, Workstation
Operating System RISC-OS 2
Timeline Released: July 1989
CPU type ARM2
CPU word length 32 bits
CPU clock rate 8 MHz
ROM Size 512 KiB
RAM Size 2 MiB
Keyboard Typewriter keyboard
Number of keys 103
Graphics chip VIDC
Graphics modes 640x256, 640x512
Total number of colours 4,096
Total peripheral memory 20.8 MiB
Sound channels 8
Sound output Stereo
I/O Ports 3x Expansion, Audio output, Composite video, Econet, Expansion, Parallel, RGB, RS-423

More technical info...

References
Full Acorn Machine List.
A Technical History of Acorn Computers (Version 0.5 Beta).