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File:Acorn 6502 2nd processor with top cover removed.jpg

Acorn_6502_2nd_processor_with_top_cover_removed.jpg (344 × 480 pixels, file size: 27 KB, MIME type: image/jpeg)

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English: Acorn 6502 2nd processor with top cover removed.This is my 6502 2nd processor which was one of the first upgrades I bought for my BBC B. I have always believed that you can never have too much memory or too fast a CPU, so the BBC B's limited memory and slower CPU were just waiting for an upgrade. Acorn produced a special version of BASIC (Hi-BASIC) and View (Hi-View) to maximise the amount of memory abailable, Computer Concepts also produced a special version of Wordwise (Hi-Wordwise) on disc.Here is the brochure describing the 6502 2nd processor.

The pictures show:

  1. The front view of the 6502 2nd processor show the typical "cheese wedge" shape and the labels. The hand written label was my reminder of the commands to load the language I wanted.
  2. The right side showing the "cheese wedge" shape, the left side is the same.
  3. The back of the 6502 2nd processor showing the power cable, fuse and on/off switch.
  4. The bottom of the 6502 2nd processor showing the ribbon cable to connect to the TUBE interface underneath the BBC micro or Master and the serial number (03-ANC01-1003860).
  5. Inside the 6502 2nd processor with the psu at the front and the circuit board in the middle. There is a lot of empty space in the "cheese wedge"!
  6. The 6502 2nd processor circuit board with the ribbon cable to the right and the Ferranti ULA next to it. the GTE 65SC02P-1 CPU is next to the ULA with the Boot ROM next to it.
  7. The bottom of the 6502 2nd processor circuit board.
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: Acorn ANC01 6502 2nd processor 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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Information (including text and photos) presented on Chris's Acorns may be reused under the Creative Commons Attribution-Share Alike 3.0 Unported unless otherwise specified. Some information, in particular all the information in the documentation section (e.g. brochures, manuals and books) and the software section (e.g. programs and disc images) remain the copyright of their respective owners and may not be reused without their permission. Images may contain trademarks which remain the property of their respective owners.

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Attribution: Chris Whytehead, Chris's Acorns – CC-BY-SA-3.0
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current23:20, 14 December 2011Thumbnail for version as of 23:20, 14 December 2011344 × 480 (27 KB)SmallbotCommons:Bots/Requests/Smallbot Uploading images from http://acorn.chriswhy.co.uk/8bit_Upgrades/Acorn_ANC01_65022ndproc.html

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