File:Solidisk Dual Floppy Disc Controller Issue 2 (top).jpg

From Wikimedia Commons, the free media repository
Jump to navigation Jump to search

Solidisk_Dual_Floppy_Disc_Controller_Issue_2_(top).jpg ‎(640 × 446 pixels, file size: 37 KB, MIME type: image/jpeg)

Captions

Captions

Add a one-line explanation of what this file represents
Description
English: Solidisk Dual Floppy Disc Controller Issue 2 (top).The Solidisk Dual Floppy Disc Controller has both an Intel 8271 and a WD1770 disc controller. The Solidisk DFDC replaces the Intel 8271 in the IC78 socket on the BBC Motherboard. The Intel 8271 is relocated on the Solidisk DFDC board (the Intel 8271 is in its socket on the issue 2 board). The board has a switch which allows the user to switch between the Intel 8271 and the WD1770, and thus single or double density discs, the Intel 8271 can also be selected for 100% compatability with the Acorn DFS.

On the issue 1 board, the Intel 8271 is not installed in the blue socket on DFDC because this interface has never been used, it was still in its box. The switch is shown on the right of the DFDC board. The 2 wires on the left connect to pin 1 of IC86 (green) and pin 9 of IC87 (yellow). Also shown with the Issue 1 board is the Solidisk DDFS 1.9 ROM and the 2 buffer 7438s which are installed in IC79 and IC80

On the issue 2 board, the green wire is one of 2 wires which which connect to a switch to allow you to switch between the Intel 8271 and WD1770 disc controllers (the other wire is missing but there is solder on the WD1770 pin where it should be connected).
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: Solidisk Dual Floppy Disc Controller Direct
Author Chris Whytehead
Permission
(Reusing this file)
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".

License to reuse.

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.

Chris's Acorns should be acknowledged as the source of the material by use of an appropriate byline/photo/image credit.

If you use material from Chris's Acorns for commercial purposes, especially on-line auctions, it must not explicitly or implicitly convey Chris's Acorns endorsement of your goods or services.

All photos from the collection are found in the source-category Category:Chris's Acorns.

Chris Whytehead, the copyright holder of this work, hereby publishes it under the following license:
w:en:Creative Commons
attribution share alike
This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license.
Attribution: Chris Whytehead, Chris's Acorns – CC-BY-SA-3.0
You are free:
  • to share – to copy, distribute and transmit the work
  • to remix – to adapt the work
Under the following conditions:
  • attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
  • share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.
VRT Wikimedia

This work is free and may be used by anyone for any purpose. If you wish to use this content, you do not need to request permission as long as you follow any licensing requirements mentioned on this page.

The Wikimedia Foundation has received an e-mail confirming that the copyright holder has approved publication under the terms mentioned on this page. This correspondence has been reviewed by a Volunteer Response Team (VRT) member and stored in our permission archive. The correspondence is available to trusted volunteers as ticket #2011111710006215.

If you have questions about the archived correspondence, please use the VRT noticeboard. Ticket link: https://ticket.wikimedia.org/otrs/index.pl?Action=AgentTicketZoom&TicketNumber=2011111710006215
Find other files from the same ticket: SDC query (SPARQL)

File history

Click on a date/time to view the file as it appeared at that time.

Date/TimeThumbnailDimensionsUserComment
current15:59, 15 December 2011Thumbnail for version as of 15:59, 15 December 2011640 × 446 (37 KB)Smallbot (talk | contribs)Commons:Bots/Requests/Smallbot Uploading images from http://acorn.chriswhy.co.uk/8bit_Upgrades/Solidisk_dfdc.html

You cannot overwrite this file.

There are no pages that use this file.

Metadata

This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.

Retrieved from "https://commons.wikimedia.org/w/index.php?title=File:Solidisk_Dual_Floppy_Disc_Controller_Issue_2_(top).jpg&oldid=690384477"