File list

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This special page shows all uploaded files. By default the last uploaded files are shown at top of the list. A click on a column header changes the sorting.

File list
 

descDate Name User Size Description Versions
11:39, 19 June 2010 Sophie.jpg (file) Jgharston 8 KB (Sophie Wilson.) 2
16:50, 18 June 2010 Rtrlogo.gif (file) Jgharston 3 KB (Richard Russell logo (see rtrussell.co.uk). ) 1
16:02, 1 November 2009 Nmi_rdio_16us_check.svg (file) Beardo 35 KB (upload correct version) 2
16:13, 13 August 2009 NMI_timing_diagram.svg (file) Beardo 37 KB (STA abs,X always takes 5 memory cycles – reading from disc to 1 MHz I/O memory stores to the wrong page in some circumstances and may overflow the stack. :( ~~~~) 2
01:52, 29 July 2009 Quad_density_modified_board.jpg (file) Beardo 120 KB (Component side of an Opus WD2791 floppy disc interface modified to work at quad density. The modifications pipe the 2 MHz clock directly to the controller, and repurpose the latch formerly used as a frequency divider to drive two pins that control an int) 1
01:48, 29 July 2009 Quad_density_screenshot.jpg (file) Beardo 18 KB (Screenshot of a 510 KB DFS-style catalogue, along with an 82 KB catalogue for a total of 600 KB per side. Output by EDOSpat 5.00 on 11 July 2009. My own work. – ~~~~) 1
16:16, 27 July 2009 Test.png (file) WikiStrator 421 B   5
13:42, 28 May 2009 Nophoto.gif (file) Jgharston 5 KB (Use when no photo available for a person's profile. ) 1
15:06, 26 May 2009 Bunny.gif (file) Jgharston 4 KB (JGHarston avatar.) 2
20:11, 16 May 2009 MasCatrear.jpg (file) Sai2791 38 KB (Rear view of a Master Rom Catridge) 1
20:10, 16 May 2009 MasCartFront.jpg (file) Sai2791 32 KB (Front view of a Master Rom Catridge) 1
18:41, 19 April 2009 Attention_niels_epting.svg (file) WikiStrator 4 KB   1
18:41, 19 April 2009 Merge-arrow.gif (file) WikiStrator 742 B   1
18:26, 19 April 2009 PD-icon.svg (file) WikiStrator 517 B (Reverted to version as of 18:20, 19 April 2009) 3
18:20, 19 April 2009 Tools.svg (file) WikiStrator 8 KB   1
18:17, 19 April 2009 PD-Help_icon.png (file) WikiStrator 21 KB   1
18:17, 19 April 2009 M-en-userlinks.png (file) WikiStrator 10 KB   1
18:17, 19 April 2009 M-en-sidebar.png (file) WikiStrator 18 KB   1
18:16, 19 April 2009 M-en-recentchanges.png (file) WikiStrator 73 KB   1
18:16, 19 April 2009 M-en-pagetabs.png (file) WikiStrator 7 KB   1
18:16, 19 April 2009 M-en-interwiki_lang.png (file) WikiStrator 9 KB   1
18:16, 19 April 2009 Geographylogo.png (file) WikiStrator 2 KB   1
18:16, 19 April 2009 Example-white-bg.jpg (file) WikiStrator 29 KB   1
18:15, 19 April 2009 Example.jpg (file) WikiStrator 60 KB   1
18:15, 19 April 2009 Bulbgraph.png (file) WikiStrator 5 KB   1
18:15, 19 April 2009 196px-PD-icon.svg.png (file) WikiStrator 9 KB   1
18:15, 19 April 2009 128px-Tools.svg.png (file) WikiStrator 16 KB   1
19:52, 19 February 2009 DDOS_disc_catalogue_format.png (file) Beardo 3 KB (Big endian sector count) 2
15:01, 14 October 2008 6502SPint.jpg (file) Jgharston 9 KB (Internal 65C12 second processor) 2
11:15, 12 April 2008 DFS_catalogue_format.png (file) Beardo 8 KB (offset &106 bit 3: DDFS) 6
03:00, 9 April 2008 DDOS_volume_catalogue_format.png (file) Beardo 11 KB (Diagram of byte assignments in the volume A catalogue of an Opus DDOS disc. The catalogues of volumes B to H occupy sectors 2 to 15. My own work. -- ~~~~) 1
14:21, 15 March 2008 Video_ULA_serialisation_block_diagram.png (file) Beardo 5 KB (deleted line, extended XOR inputs into body) 4
12:50, 15 March 2008 Serial_ULAs.jpg (file) Beardo 22 KB (The Ferranti Serial ULA (top), part number 2C199E-7. The VLSI Serial Processor (SERPROC, bottom), part number VC2026/201648. My own photo. -- ~~~~) 1
16:08, 25 January 2008 AcornLogo.png (file) Jbrierley 17 KB (Latter-day logo of Acorn Computers Ltd.) 1
15:08, 8 January 2008 Master128.jpg (file) Jbrierley 47 KB (The BBC Master 128, base model of the Master Series and the model on which the Master 512, Master Turbo, Master AIV and cut-down Master ET are based.) 1
20:43, 13 December 2007 User_defined_stick_figure.png (file) Beardo 1 KB (Defining a user character with <code>VDU 23</code>. This bitmap can be assigned to character 224 using the following statement: VDU 23,224,28,28,8,127,8,20,34,65 -- ~~~~) 1
10:28, 13 December 2007 Text_window.png (file) Beardo 2 KB (Defining a text window using <code>VDU 28</code>. The distances are always measured from the top left corner of the screen. As they are measured in characters, the absolute position on the screen depends on the <code>MODE</code>. The BASIC comm) 1
10:22, 13 December 2007 Graphics_window.png (file) Beardo 2 KB (coloured display area and window) 2
18:25, 21 October 2007 BBC_owl.png (file) Jbrierley 40 KB (The famous BBC Microcomputer owl logo, associated with the BBC Computer Literacy Project and printed on all BBC Micro models.) 1
18:14, 21 October 2007 Master512_small.jpg (file) Jbrierley 38 KB (Acorn publicity photo of the Master 512 in action.) 1
21:17, 8 October 2007 ARM7SP.jpg (file) Jgharston 6 KB (ARM7 Second Processor. Picture from sprow.co.uk.) 1
21:16, 8 October 2007 Z80SP.jpg (file) Jgharston 10 KB (Z80 Second Processor. Picture from acorn.chriswhy.co.uk. ) 2
21:14, 8 October 2007 6502SPext.jpg (file) Jgharston 12 KB (6502 Second Processor cheese-wedge version.) 1
16:02, 8 October 2007 80186SP.jpg (file) Jgharston 7 KB (Internal 80186 Second Processor. Original from chriswhy.co.uk.) 1
15:53, 8 October 2007 32016SP_4M.jpg (file) Jgharston 8 KB (32016 Second Processor with 4M of RAM, as fitted into the Acorn Cambridge Workstation. Picture from acorn.chriswhy.co.uk. ) 1
15:51, 8 October 2007 32016SP_1M.jpg (file) Jgharston 9 KB (32016 Second Processor with 1M of RAM installed in a cheese wedge. ) 1
17:42, 14 September 2007 OSWRCH_output_fanout.png (file) Beardo 7 KB (Cosmetic reorganisation.) 9
00:53, 8 January 2007 Serial_ULA_pinout.png (file) Beardo 2 KB (Pinout of the Serial ULA, part number ULA 2C199E, and its successor the Serial Processor (SERPROC), part number VC 2026/201648. Adapted from the Circuit Diagram for the BBC Microcomputer (drawing No. 103,000/C issue 7). The Serial Processor was sligh) 1
00:37, 8 January 2007 Video_ULA_pinout.png (file) Beardo 2 KB (Pinout of the Video ULA, part number ULA 5C094, and its successor the Video Processor (VIDPROC), part numbers VC 2023/201647 and VC 2069/201647. Adapted from the Circuit Diagram for the BBC Microcomputer (drawing No. 103,000/C issue 7). VC 2023 requ) 1
17:06, 29 October 2006 6502SP.jpg (file) Jbrierley 2 KB (6502 Second Processor) 1

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