Search Posts:

File Archives:

Directory Home | OSI | Challenger_1P |

Download full-sized images and files using the left column links. Featured images have a thumbnail. Items marked DIR represent links to additional content. Files with long filenames are displayed with trimmed names for layout purposes.

Click on column header to change sort order:
Name Size
C1P-ServiceManual.pdf 14,265,731 KB
C1P-UserManual.pdf 25,957,639 KB
Electrohome display.jpg 203,764 KB
OSI CP1 2114 RAM.jpg
OSI CP1 J3-pic1.jpg 391,481 KB
OSI CP1 J3-pic2.jpg 214,608 KB
OSI CP1 J3-pic3.jpg 121,706 KB
OSI CP1 J4-pic1.jpg 416,748 KB
OSI CP1 J4-pic2.jpg 131,102 KB
OSI CP1 J4-pic3.jpg 379,298 KB
OSI CP1 J4-pic4.jpg 538,766 KB
OSI CP1 J4-pic5.jpg 652,277 KB
OSI CP1 ROMs.jpg
OSI CP1 baud-hack-pic1.jpg 663,677 KB
OSI CP1 baud-hack-pic2.jpg 674,613 KB
OSI CP1 baud-hack-pic3.jpg 597,009 KB
OSI CP1 baud-hack-pic4.jpg 631,356 KB
OSI CP1 baud-hack-pic5.jpg 525,155 KB
OSI CP1 baud-hack-pic6.jpg 575,156 KB
OSI CP1 baud-hack.jpg 644,900 KB
OSI CP1 disassembled-working.j 643,898 KB
OSI CP1 moBo-pic2.jpg 700,299 KB
OSI CP1 moBo.jpg
OSI CP1 moBo 6502.jpg 693,131 KB
OSI CP1 regulated-pwr.jpg 610,277 KB
OSI Challenger 1P.jpg
OSI Challenger 1P 600mbd botto
OSI Challenger 1P 600mbd side- 327,868 KB
OSI Challenger 1P 600mbd side. 549,057 KB
OSI Challenger 1P pic2.jpg 331,855 KB
OSI Challenger 1P pic3.jpg
OSI Challenger 1P pwrsupl-pic2 635,134 KB
OSI Challenger 1P pwrsupl.jpg
OSI Challenger 1P rear-left.jp 373,885 KB
OSI Challenger 1P rear-ports.j 226,430 KB
OSI Challenger 1P rear-rt.jpg 345,703 KB
OSI Challenger 1P sn7110.jpg 23,873 KB
OSI Challenger w-ElectrohomeMo
seawolf.jpg

Resources:

  • Home
  • Manufacturer photos, software, docs
  • Disk Images
  • Computer History Articles Scans and Files
  • YouTube.com Videos
  • Sale/Trade/Wanted/Miscellaneous
  • Photo Gallery
  • The Ultimate Vinage Computing Links List
  • Switch to DOS Prompt view

    • Buy a Commodore Computer Poster

    Popular Topics and FAQs


  • TM990/101 M
  • Altair 8800bt notes
  • TRS 80 Model 4 Engineering Sample
  • Altos 5-5AD
  • Morrow Wunderbuss Motherboard - Fried!
  • Epson PX-8
  • C64 emulator to run on PC
  • Mac 128K with SAD MAC error 041800
  • IMSAI 8080 With Processor Tech. Cutter
  • Secrecy is the keystone of all tyranny
  • Cromemco System Three
  • Commodore "Coherent"
  • Exatron Stringy Floppy Update
  • TM 990/189 or PP189
  • Lanier Word Processor Model 103
  • Univac 1219 rescue
  • IMSAI 1.4 BASIC vs. MITS 8K BASIC
  • Atari 520ST
  • DEC Information Request Reply Card
  • Amiga 2500 Restoration
  • IBM XT sn 4359455
  • Amiga 2000 with Dual Drives and HD
  • A New 68000 CPU S-100 Board
  • Edmund Scientific Co Ad 1973
  • Micropolis 10xx Drive Inventory
  • Texas Instruments 99/4a with PHP1200
  • MITS Altair 8800b T with Dual Drives
  • Burroughs L5000 Controller Card Photos
  • Digital PDP 11/44
  • TRS 80 Model III Exatron Stringy Floppy
  • Digital PDP-9 The Serious Computer
  • Live long and prosper, Spock
  • PDP 11/40 M7656 Serial Comms
  • 1993 Compaq Deskpro 5/60M
  • 1974/5 TCC-3700 i8080 Computer
  • Processor Tech 3P + S ASR 33 Jumpers
  • Tektronix 4015-1 Graphics Terminal
  • Lear Siegler ADM-3A GraFix Board
  • UNIVAC 1219 USS Midway CV-41
  • Commodore VIC-21
  • Prevent VMS MULTINET SMTP Relay Hijacks
  • NExT Cube Restoration
  • 1976 P.C.C. Features the MAI JOLT 6502
  • 1961 Beckman DEXTIR Computer
  • UNIVAC 1 and UNIVAC File Computer 1
  • Computer Music Using the IBM 7094
  • 1985 PCs Limited Turbo PC
  • Digital Equipment Corporation PDP-8
  • IMSAI 8080 Chase the Lights Variations
  • XYBASIC on the IMSAI 8080
  • Cromemco Dazzler
  • Cramer Intel 8080A Microcomputer
  • Original ACHTUNG Computer Lab Humor
  • Leading Edge Computers

    • Past Issues:

    Before we switched over to a blog format, past page archives here:
  • Vintage Computer Festival East 3.0 June 2006
  • Commodore B Series Prototypes July 2006
  • VOLSCAN - The first desktop computer with a GUI? Oct 2006
  • ROBOTS! - Will Robots Take Over? Nov 2006
  • Magnavox Mystery - a Computer, or? Jan 2007
  • The 1973 Williams Paddle Ball Arcade Computer Game Feb 2007
  • The Sperry UNIVAC 1219 Military Computer May 2007
  • VCF East 2007 - PET 30th Anniversary June/July 2007
  • The Electronic Brain August 2007
  • Community Memory and The People's Computer Company October 2007
  • Charles Babbage's Calculating Machine December 2007
  • Vintage Computing - A 1983 Perspective February 2008
  • Laptops and Portables May 2008
  • From Giant Brains to Hobby Computers - 1957 to 1977 August 2008
  • Historic Computer Magazines November 2008
  • World's Smallest Electronic Brain - Simon (1950) December 2008 - Feb 2009
  • Free Program Listings Spring 2009
  • Computer Music Summer 2009
  • Popular Electronics Jan/Feb 1975 - Altair 8800 Fall 2009
  • Early Microcomputer Mass Storage Summer 2010