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  1. GE 4000https://vaxbarn.com/collection/cpu/cisc/ge4000

    GE 4000 CPU Architecture Word size:24 architecture used in:Honeywell 4500 cpu using this architecture:Honeywell 45000 Turbo cpu using this architecture:Honeywell 45000 MaxP cpu architecture class:CISC (Complex Instruction Set Computer) GE 4000 CPU...

    • Type: Article
    • Author: Vaxbarn
    • Category: Collection
  2. Clipperhttps://vaxbarn.com/collection/cpu/risc/clipper

    Word size:32 bit architecture used in:Intergraph InterPro 6000 architecture used in:Intergraph InterPro 2400 cpu using this architecture:Intergraph C300 cpu using this architecture:Fairchild C100 cpu architecture class:RISC (Reduced Instruction Set...

    • Type: Article
    • Author: Vaxbarn
    • Category: Collection
  3. First diagnosis and degreasing of I/O Selectrichttps://vaxbarn.com/collection/mainframe/ibm-360-65/first-diagnosis-and-degreasing-of-i-o-selectric

    for the I/O Selectric is a visual inspection, both in and out of its outer shell. Other than a broken right margin lever, this didn't reveal any obvious faults. In fact, the machine looks pretty clean for a 50 year old device. Of course, the nasty foam...

    • Type: Article
    • Author: Vaxbarn
    • Category: Repair
  4. Ardent Titanhttps://vaxbarn.com/collection/super/ardent-titan

    Bell Mathematical Software: Cleve Moler Ardent Titan / Stardent 1500 [R0020] instance Contains:Ardent Titan P2 (R2K based) This first Ardent Titan is one of the four systems donated by a Stanford University professor. This Titan has a single CPU, 2...

    • Type: Article
    • Author: Vaxbarn
    • Category: Collection
  5. IBM 360 Interface PCBhttps://vaxbarn.com/collection/mainframe/ibm-360-65/ibm-360-interface-pcb

    Debugging the veroboards with the pile of wires between them is proving challenging. I've therefore decided to let this be a prototype, and will re-implement the circuit on a printed circuit board. I've redrawn the schematics in kicad, including the...

    • Type: Article
    • Author: Vaxbarn
    • Category: IBM 360
  6. PCB Manufacturing Progress(2)...https://vaxbarn.com/collection/mainframe/ibm-360-65/pcb-manufacturing-progress-2

    I have received some more pictures of the PCB board being made: After applying the solder mask This is where the first problem with the PCB's shows: the oval pads for the power connectors and connectors to the USB interface look ok on top of the board...

    • Type: Article
    • Author: Vaxbarn
    • Category: IBM 360
  7. Servomechanisms Range Servohttps://vaxbarn.com/collection/analog/servo-rangeservo

    Servo System Company:Servomechanisms Introduction:1950 System class:Analog Computer {gallery}servo/rangeservo{/gallery} This "range servo" is a part mechanic, part electronic, analog computer used for fire control on airplanes. Any additional...

    • Type: Article
    • Author: Vaxbarn
    • Category: Collection
  8. Getting an X1215 cartridge disc drive onlinehttps://vaxbarn.com/collection/mini/philips-p857/getting-an-x1215-cartridge-disc-drive-online

    X1215 drives back in working order, and build an interface so that I can make images of all the disk cartridges I have. To this end, I cleaned the disk compartment, the heads, and the fixed disk (vacuum cleaner, brush, IPA swipes, gloves...), replaced...

    • Type: Article
    • Author: Vaxbarn
    • Category: Repair
  9. Eyring PDOShttps://vaxbarn.com/collection/company/eyring/pdos

    the already supported disk controllers, provide initialization and sector read and write routines for your disk controller This process is well-described in the reference manual, chapters 2 (installation), 8 (disk device service routines), and appendix...

    • Type: Article
    • Author: Vaxbarn
    • Category: Collection
  10. DEC Multia VX41https://vaxbarn.com/collection/workstation/dec-multiavx41

    systems overheat easily. DEC Multia VX41 [R0049] instance Contains:DEC 21066 (LCA4) A notable feature are the 12 MB SIMMs this system originally came with. Two 16 MB SIMMs were added later. This unit has an upgradeable CPU (the VX40 has the same CPU,...

    • Type: Article
    • Author: Vaxbarn
    • Category: Collection
  11. DEC VAX 9000https://vaxbarn.com/collection/super/dec-vax9000

    the clock distribution chip; surrounding it are 7 macrocell arrays, and 9 RAM chips. The pin fins on the back indicate that this module came from an air-cooled ("Aridus") system. A water-cooled MCU would have had attachment sites for water hoses here....

    • Type: Article
    • Author: Vaxbarn
    • Category: Collection
  12. Intel SYP301https://vaxbarn.com/collection/desktop/intel-syp301

    Architecture 32-bit) can contain:Intel 80386 System class:Desktop Contains:Intel 80386 {gallery}intel/syp301{/gallery} This desktop system was built by Intel around their iSBC386AT main board, possibly the first AT-compatible 386 main board produced....

    • Type: Article
    • Author: Vaxbarn
    • Category: Collection
  13. Video: OS/360 IPL up to IEA100I messagehttps://vaxbarn.com/collection/mainframe/ibm-360-65/video-os-360-ipl-up-to-iea100i-message

    executed. I find the offending instruction in that second file, and try to figure out what causes the behavior to be wrong. This way, I'm now getting correct behavior IPL'ing OS/360 MFT up to the first message being written to the console. The console...

    • Type: Article
    • Author: Vaxbarn
    • Category: IBM 360
  14. Welcomehttps://vaxbarn.com/welcome

    in lots of different places. Since there are a few people occasionally interested in what I'm doing, I've decided to create this website to both document my collection and to have a place to put information about all these different projects in one...

    • Type: Article
    • Author: Vaxbarn
    • Category: Uncategorised
  15. TMS9900https://vaxbarn.com/collection/cpu/cisc/tms9900

    TMS9900 CPU Architecture Endianness:big Word size:16 architecture used in:TEP FTI990 architecture used in:TEP PC95 cpu using this architecture:TI TMS9900 cpu architecture class:CISC (Complex Instruction Set Computer) TMS9900 CPU Architecture...

    • Type: Article
    • Author: Vaxbarn
    • Category: Collection
  16. Bitslicehttps://vaxbarn.com/collection/cpu/bitslice

    Bitslice CPU Architecture Class cpu architecture in this class:SBP0400 (Silicon Bipolar 0400) Bitslice CPU Architecture Class cpu architecture in this class:SBP0400 (Silicon Bipolar 0400)

    • Type: Article
    • Author: Vaxbarn
    • Category: Collection
  17. SBP0400 (Silicon Bipolar 0400)https://vaxbarn.com/collection/cpu/bitslice/sbp0400

    SBP0400 (Silicon Bipolar 0400) CPU Architecture Word size:4 architecture used in:TI LCM-1001 cpu using this architecture:TI SBP0400 cpu architecture class:Bitslice SBP0400 (Silicon Bipolar 0400) CPU Architecture Word size:4 architecture used in:TI...

    • Type: Article
    • Author: Vaxbarn
    • Category: Collection
  18. EPIC (Explicitly Parallel Instruction Set Computer)https://vaxbarn.com/collection/cpu/epic

    EPIC (Explicitly Parallel Instruction Set Computer) CPU Architecture Class cpu architecture in this class:IA64 (Itanium) EPIC (Explicitly Parallel Instruction Set Computer) CPU Architecture Class cpu architecture in this class:IA64 (Itanium)

    • Type: Article
    • Author: Vaxbarn
    • Category: Collection
  19. Load/Store Architecturehttps://vaxbarn.com/collection/cpu/lsa

    Load/Store Architecture CPU Architecture Class cpu architecture in this class:Nova Load/Store Architecture CPU Architecture Class cpu architecture in this class:Nova

    • Type: Article
    • Author: Vaxbarn
    • Category: Collection
  20. Novahttps://vaxbarn.com/collection/cpu/lsa/nova

    Nova CPU Architecture Endianness:big Word size:16 architecture used in:DG Nova 4 architecture used in:ROLM 1666B cpu using this architecture:DG Nova 4 cpu architecture class:Load/Store Architecture Nova CPU Architecture Endianness:big Word size:16...

    • Type: Article
    • Author: Vaxbarn
    • Category: Collection