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Meaning of PDP-7

 
Matching Terms:  pdp, pdp assembly language, pdp-10, pdp-11, pdp-20, pdp-6

Computing Dictionary
 
 Definition: 

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.

 

 

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