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  1. Printerhttps://vaxbarn.com/collection/printer

    Printer Peripheral Class Type of peripheral:Printer peripheral in this class:HP 82905B Printer peripheral in this class:DEC LJ250 Companion Color Printer peripheral in this class:DEC LA70 Personal Printer peripheral in this class:DEC LA75 Companion...

    • Type: Article
    • Author: Vaxbarn
    • Category: Collection
  2. Initial Convex C220 Checkouthttps://vaxbarn.com/collection/super/convex-c220/initial-convex-c220-checkout

    open the front door, it’s apparent that the sheetmetal cover that’s supposed to cover the front of the card cage is missing. This can easily be replaced though, perhaps even with a sheet of Lexan (so you can still see the processor boards). Below the...

    • Type: Article
    • Author: Vaxbarn
    • Category: Acquisitions
  3. Reading 32-year old data off an X1215 disk packhttps://vaxbarn.com/collection/mini/philips-p857/reading-32-year-old-data-off-an-x1215-disk-pack

    the DC card didn't change as a result. The problem turned out to be a flip-flop (half of a 7474 IC) on the DC card, so once this was replaced, I took another image of the "Testprograms" disk. As the header shows, this disk pack was written in 1982 (not...

    • Type: Article
    • Author: Vaxbarn
    • Category: Project
  4. SMD Disk Emulator Projecthttps://vaxbarn.com/collection/super/convex-c1xp/smd-disk-emulator-project

    is a dual-ported memory buffer large enough to hold an entire track worth of data, plus information about whether or not this data is "dirty" (has changed). The emulated disk writes and reads data to and from this buffer. A simple program running on the...

    • Type: Article
    • Author: Vaxbarn
    • Category: Project
  5. Luggablehttps://vaxbarn.com/collection/luggable

    Luggable System Class System class:Luggable system in this class:HP Integral PC (9807A) system in this class:HP 85A system in this class:HP 97 system in this class:IBM PS/2 Model P70 system in this class:MAI Basic Four S/10 5104 system in this...

    • Type: Article
    • Author: Vaxbarn
    • Category: Collection
  6. Arrival of the C220https://vaxbarn.com/collection/super/convex-c220/arrival-of-the-c220

    About a week ago, the Convex C220 arrived, this is the first part of the Convex C2 Shipment (the Convex C240 will follow three weeks from now). This first shipment consisted of the C220 cpu cabinet, a couple of empty cabinets, some spare parts, some...

    • Type: Article
    • Author: Vaxbarn
    • Category: Acquisitions
  7. Fixing and Booting the SPP-1600/XAhttps://vaxbarn.com/collection/super/convex-spp1600/fixing-and-booting-the-spp-1600-xa

    out that the SPP-1600/XA disk cabinet contains 6 Ancot AS-SED-616M boards, which is a differential single ended converter. This works perfectly for attaching single-ended disks to a differential controller (as in the SPP), but it works equally well for...

    • Type: Article
    • Author: Vaxbarn
    • Category: Repair
  8. PDP-11 (Programmable Data Processor 11)https://vaxbarn.com/collection/cpu/cisc/pdp11

    in:DEC PDP-11/94 architecture used in:DEC MicroPDP-11 architecture used in:DEC VT240 architecture used in:SMS 1000 cpu using this architecture:DEC KD11-B cpu using this architecture:DEC F-11 cpu using this architecture:DEC J-11 cpu using this...

    • Type: Article
    • Author: Vaxbarn
    • Category: Collection
  9. Convex videoshttps://vaxbarn.com/collection/company/convex/convex-videos

    and 5500), variants of their C-series Vector Supercomputers with additional real-time capabilities in hardware and software. This video introduces the series with a look at its application in an R&D flight simulator at NASA'sLangley Research Center. How...

    • Type: Article
    • Author: Vaxbarn
    • Category: Various
  10. Laptophttps://vaxbarn.com/collection/laptop

    Laptop System Class System class:Laptop system in this class:Tadpole SPARCbook I system in this class:Tadpole ALPHAbook 1 system in this class:IBM PC Convertible (5140) system in this class:IBM PS/2 Note N33 (8533) system in this class:Wang WLTC system...

    • Type: Article
    • Author: Vaxbarn
    • Category: Collection
  11. Test Equipmenthttps://vaxbarn.com/collection/testeq

    Test Equipment Peripheral Class Type of peripheral:Test Equipment peripheral in this class:Foxboro 2AT-CAL Spec 200 System Calibrator peripheral in this class:IBM 19902 I/O Tester peripheral in this class:Tektronix 453 Oscilloscope peripheral in this...

    • Type: Article
    • Author: Vaxbarn
    • Category: Collection
  12. Ardent Titan power-onhttps://vaxbarn.com/collection/super/ardent-titan/ardent-titan-power-on

    was to take the 330MB Priam 738 SCSI disk out of the system, connect it to my laptop, and start making an image of it. While this was going, I started checking out the rest of the machine. First, the power supply. The power supply is a large FDK...

    • Type: Article
    • Author: Vaxbarn
    • Category: Repair
  13. Restoring the Convex C220https://vaxbarn.com/collection/super/convex-c220/restoring-the-convex-c220

    du6, du7, and du13 are missing), and the IPI device number settings match as well. However, the previous owner was told that this rack of disks belonged to the C240, not the C220. So, time to try to boot the C220 off the disk labeled “du0”. I have no...

    • Type: Article
    • Author: Vaxbarn
    • Category: Repair
  14. TEP FTI990 Repairhttps://vaxbarn.com/collection/industrial/tep-fti990/tep-fti990-repair

    This TEP FTI990 initially seemed to be in good shape, however, initially I couldn't get it to boot. In the end several problems were found that conspired to prevent it from booting. Most problems were identified by hooking the system up to a logic...

    • Type: Article
    • Author: Vaxbarn
    • Category: Repair
  15. Four Supercomputershttps://vaxbarn.com/collection/super/intel-ipsc860/four-supercomputers

    compatible job batch system; Fortran language extensions compatible with VAX and Cray Fortran. An early Convex system like this has been at the top of my wishlist for a long time, particularly for its special UNIX with VAX/VMS compatibility features,...

    • Type: Article
    • Author: Vaxbarn
    • Category: Acquisitions
  16. x86https://vaxbarn.com/collection/cpu/cisc/x86

    I architecture used in:GRiD GRiDCase Plus architecture used in:LOMAC DAVID architecture used in:Tulip pc compact 2 cpu using this architecture:Intel 8086 cpu using this architecture:Intel 8088 cpu using this architecture:Intel 80C88 cpu using this...

    • Type: Article
    • Author: Vaxbarn
    • Category: Collection
  17. 8080https://vaxbarn.com/collection/cpu/cisc/8080

    10/91M architecture used in:VEB Treptow Ursatron 5000 Serviceeinheit architecture used in:Intel MDS-II Model 226 cpu using this architecture:Intel 8080 cpu using this architecture:Intel 8085 cpu using this architecture:Zilog Z80 cpu using this...

    • Type: Article
    • Author: Vaxbarn
    • Category: Collection
  18. VAX (Virtual Address eXtension)https://vaxbarn.com/collection/cpu/risc/vax

    architecture used in:DEC MicroVAX 3300 architecture used in:DEC MicroVAX 3800 architecture used in:DEC VXT2000+ cpu using this architecture:DEC MicroVAX 78032 (DC333) cpu using this architecture:DEC CVAX (78034) cpu using this architecture:DEC SOC cpu...

    • Type: Article
    • Author: Vaxbarn
    • Category: Collection
  19. 68000https://vaxbarn.com/collection/cpu/cisc/68k

    used in:Philips CDI615 Prototype architecture used in:Honeywell TDC3000 architecture used in:Cisco 2500 Router cpu using this architecture:Motorola 68000 cpu using this architecture:Motorola 68040 cpu using this architecture:Motorola 68020 cpu using...

    • Type: Article
    • Author: Vaxbarn
    • Category: Collection
  20. Getting a Convex C1 to pass all diagnosticshttps://vaxbarn.com/collection/super/convex-c1xp/getting-a-convex-c1-to-pass-all-diagnostics

    a lot of help from ex-Convex employees (a special thanks goes to Doug Hosking), I learned a lot about what can be done in this environment. So, now that we got SPU UNIX up and running on the service processor unit (see Convex C1 XP Service Processor...

    • Type: Article
    • Author: Vaxbarn
    • Category: Repair