The Machine Room
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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 :: R225


Entry quality: 1 | Rate this entry: Unrated (0 votes). | 3859 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 R225 (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
Emphasis Education, Graphic Arts, Music, Programming, Workstation
Operating System RISCiX
Timeline Released: June 1990
CPU type ARM3
CPU word length 32 bits
CPU clock rate 26 MHz, 33 MHz
ROM Size 512 KiB
RAM Size 4 MiB
Maximum RAM Size 16 MiB
Keyboard Typewriter keyboard
Number of keys 103
Graphics chip VIDC
Graphics modes 640x256, 640x512, 800x600
Total number of colours 4,096
Sound channels 8
Sound output Stereo
I/O Ports 3x Expansion, Audio output, Composite video, Econet, Expansion, Parallel, RGB, RS-423, VGA

More technical info...

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