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・ pdksh
・ pdl
・ pdl2
・ pdm
・ pdp
・ pdp assembly language
・ pdp-10
・ pdp-11
・ pdp-20
・ pdp-6
・ pdp-7
・ pds
・ pds/magen
・ pdsa cycle
・ pdu
・ pe
・ peacenet
・ peak envelope power
・ peano arithmetic
・ pearl


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PDP-7 : FOLDOC
PDP-7
A minicomputer sold by DEC in 1964. It had a memory cycle time of 1.75 microseconds and add time of 4 microseconds. I/O included a keyboard, printer, paper-tape and dual transport DECtape drives (type 555).
DEC provided an "advanced" Fortran II compiler, a Symbolic Assembler, Editor, DDT Debugging System, Maintenance routines and a library of arithmetic, utility and programming aids developed on the program-compatible PDP-4.
[DEC sales brochure].
The PDP-7 was considered reliable enough (when properly programmed) to be used for control of nuclear reactors and such.
Around 1970 Ken Thompson built the operating system that became Unix on a scavenged PDP-7 so he could play a descendant of the SPACEWAR game.
(1995-03-10)



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