PDP-6

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PDP-6 Flip-Flop [1] [2] [3] [4]

PDP-6, (Programmed Data Processor-6)
DEC's first 36-bit [5] personal mainframe computer developed and manufactured from 1963, and shipped since 1964 [6], influential for the later PDP-10 with almost identical instruction sets. Addressing remained 18-bit, as in earlier DEC machines, allowing for a 256 Kiword main magnetic core memory, optionally with 16 words of fast memory constructed from discrete transistor flip-flops [7]. Output could be displayed on a DEC 340 display [8] [9] [10] [11] [12].

Already supporting Time-sharing, the operating system used was an early version of what later became TOPS-10, and several sites made custom versions of the system, available as source code. The PDP-6 with serial number 2 was donated to MIT's [13] Project MAC, where it was used to develop the ITS operating system. Richard Greenblatt et al. developed the Mac Hack VI chess program entirely in MIDAS, the PDP-6 macro assembler.

Photos

Bell and Kotok

Dec pdp-6.lg.jpg

Gordon Bell and Alan Kotok at PDP-6 in 1964 [14]

Robert Q

First tournament game by a computer, Carl Wagner (2190) - Robert Q, January 21, 1967 [15]

RobertQ1967.JPG

Allen Moulton and R. William Gosper operating "Robert Q" on a PDP-6 [16]

See also

External Links

References

  1. ↑ Bits by Lawrence J. Krakauer
  2. ↑ PDP-6 Circuit Instruction Manual, © 1966, Digital Equipment Corporation (pdf)
  3. ↑ PDP-6 Details from The Computer History Museum
  4. ↑ /resources/still-image/DEC/PDP-6/ from The Computer History Museum
  5. ↑ Moby Memory by Lawrence J. Krakauer
  6. ↑ PDP-6 Price List, February 1, 1964 (pdf)
  7. ↑ PDP-6 from Wikipedia
  8. ↑ I resign by Lawrence J. Krakauer
  9. ↑ Chess stories by Lawrence J. Krakauer
  10. ↑ Image of DEC 340 at A Critical History of Computer Graphics and Animation | Section 3: The industry evolves
  11. ↑ History of Australian Computer Museum Society WA | PDP-6
  12. ↑ James Gerard Fiasconaro (1970). A Computer-Controlled Graphical Display Processor. Project MAC, MIT, pdf
  13. ↑ Mac Hack from Wikipedia
  14. ↑ PDP-6 with Gordon Bell and Alan Kotok from The Computer History Museum, PDP-6 from Wikipedia
  15. ↑ MIT Computer Loses to Human in Chess. Sun Journal (Lewiston), January 23, 1967, Google News
  16. ↑ AP :: Images :: Search Results :: Carl Wagner, 1967, MIT Chess

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