Programmed Data Processor (PDP), referred to by some customers, media and authors as "Programmable Data Processor, is a term used by the Digital Equipment Corporation from 1957 to 1990 for several lines of minicomputers.
The only PDP-3 was built by the CIA's Scientific Engineering Institute (SEI) in Waltham, Massachusetts to process radar cross section data for the Lockheed A-12 reconnaissance aircraft in 1960.
Architecturally it was essentially a PDP-1 controlling a PDP-1 stretched to 36-bit word width. PDP-4: This 18-bit machine, first shipped in 1962 of which "approximately 54 were sold" was a compromise: "with slower memory and different packaging" than the PDP-1, but priced at $65,000 - considerably less than its predecessor (about half the price).
It was one of the first computer series with more than 1,000 built. PDP-6: This 36-bit machine, DEC's first large PDP computer, came in 1964 with the first DEC-supported timesharing system.
It was introduced in 1964, and a second version, the 7A, was subsequently added.
Later models are also used in the DECmate word processor and the VT-78 workstation. LINC-8: A hybrid of the LINC and PDP-8 computers; two instruction sets; 1966.
What is believed to be the first video game, Spacewar!, was developed for this machine, along with the first known word processing program for a general-purpose computer, "Expensive Typewriter". The last of DEC's 53 PDP-1 computers was built in 1969, a decade after the first, and nearly all of them were still in use as of 1975.
With slight redesign, and different livery, officially followed by, and marketed as, the "Lab-8". PDP-13: Designation was not used. PDP-14: A machine with 12-bit instructions, intended as an industrial controller (PLC; 1969).
Digital never made a PDP-20, although the term was sometimes used for a PDP-10 running TOPS-20 (officially known as a DECSYSTEM-20). SM EVM series of computers in the USSR DVK personal computers series are PDP clones developed in USSR in 1970s. Elektronika BK UKNC ==Notes== ==References== C.
The PDP-16/M was introduced in 1972 as a standard version of the PDP-16. ==Related computers== TX-0 designed by MIT's Lincoln Laboratory, important as influence for DEC products including Ben Gurley's design for the PDP-1 LINC (Laboratory Instrument Computer), originally designed by MIT's Lincoln Laboratory, some built by DEC.
Digital Press, Maynard, Mass., 1972. Conversations with David M.
What is believed to be the first video game, Spacewar!, was developed for this machine, along with the first known word processing program for a general-purpose computer, "Expensive Typewriter". The last of DEC's 53 PDP-1 computers was built in 1969, a decade after the first, and nearly all of them were still in use as of 1975.
McNamara, Computer Engineering: A DEC View of Hardware Systems Design (Digital, 1978) Bell, C.G., Grason, J., and Newell, A., Designing Computers and Digital Systems.
Programmed Data Processor (PDP), referred to by some customers, media and authors as "Programmable Data Processor, is a term used by the Digital Equipment Corporation from 1957 to 1990 for several lines of minicomputers.
The KS was used for the 2020, DEC's entry in the distributed processing market, introduced as "the world's lowest cost mainframe computer system." PDP-11: The archetypal minicomputer (1970); a 16-bit machine and another commercial success for DEC.
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