File:Opus Challenger3 (RAM disc).jpg

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Opus_Challenger3_(RAM_disc).jpg ‎(640 × 270 pixels, file size: 45 KB, MIME type: image/jpeg)

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English: Opus Challenger3 (RAM disc).The Opus Challenger 3 is a 5.25" floppy disc drive, a 256KB or 512KB RAM drive and a disc controller all in, what appears to be, a double floppy drive case. Unusually the Challenger 3 does not connect to the BBC's floppy drive port but connects to the 1MHz bus and includes a pass through socket so devices can be daisy chained. The Challenger 3 has a WD1770 disc controller. The board is labeled OPUS BBC 512 issue 2. The pictures show: The Challenger 3 circuit board with 256K RAM in the right middle and sockets for another 256K below. The WD1770 is above the RAM. The floppy disc drive connector is on the right edge and there is a connector for a second drive (?) next to it. The 1MHz bus cable goes under the circuit board and connects to the left edge with a connector for a pass through cable behind it.
Date between circa 2004 and circa 2011
date QS:P,+2050-00-00T00:00:00Z/7,P1319,+2004-00-00T00:00:00Z/9,P1326,+2011-00-00T00:00:00Z/9,P1480,Q5727902
Source Chris's Acorns: Opus Challenger 3 Direct
Author Chris Whytehead
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Chris's Acorns This photograph originates from Chris's Acorns, a collection of material relating to Acorn Computers. The photograph was created between ~2004 and 2011 by Chris Whytehead. Please use the photo while adhering to the license including the attribution to "Chris Whytehead, Chris's Acorns – CC-BY-SA-3.0".

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Attribution: Chris Whytehead, Chris's Acorns – CC-BY-SA-3.0
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current13:12, 15 December 2011Thumbnail for version as of 13:12, 15 December 2011640 × 270 (45 KB)Smallbot (talk | contribs)Commons:Bots/Requests/Smallbot Uploading images from http://acorn.chriswhy.co.uk/8bit_Upgrades/Opus_Challenger3.html

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