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  2. PDP-10 - Wikipedia

    en.wikipedia.org/wiki/PDP-10

    Digital Equipment Corporation (DEC)'s PDP-10, later marketed as the DECsystem-10, is a mainframe computer family [1] manufactured beginning in 1966 [2] and discontinued in 1983. [3] [4] [5] 1970s models and beyond were marketed under the DECsystem-10 name, especially as the TOPS-10 operating system became widely used. [a]

  3. DECSYSTEM-20 - Wikipedia

    en.wikipedia.org/wiki/DECSYSTEM-20

    Model As used the original PDP-10 memory bus, with external memory modules. The later Model B processors used in the DECSYSTEM-20 used internal memory, mounted in the same cabinet as the CPU. The Model As also had different packaging; they came in the original tall PDP-10 cabinets, rather than the short ones used later on for the DECSYSTEM-20.

  4. DECsystem - Wikipedia

    en.wikipedia.org/wiki/DECsystem

    The other model may contain one to five 5.25-inch full-height non-removable, one 5.25-inch removable and two 5.25-inch half-height removable devices. In both models, a 400 W power supply is located at the rear of the drawer. The H9A00 enclosure, a 19-inch rack, contains a minimum of one CPU drawer and one mass storage drawer. A power controller ...

  5. Digital Equipment Corporation - Wikipedia

    en.wikipedia.org/wiki/Digital_Equipment_Corporation

    The PDP-10 was widely used in university settings, and thus was the basis of many advances in computing and operating system design during the 1970s. DEC later re-branded all of the models in the 36-bit series as the "DECsystem-10", and PDP-10s are generally referred to by the model of their CPU, starting with the "KA10", soon upgraded to the ...

  6. TOPS-20 - Wikipedia

    en.wikipedia.org/wiki/TOPS-20

    TOPS-20 was based upon the TENEX operating system, which had been created by Bolt Beranek and Newman for Digital's PDP-10 computer. After Digital started development of the KI-10 version of the PDP-10, an issue arose: by this point TENEX was the most popular customer-written PDP-10 operating systems, but it would not run on the new, faster KI-10s.

  7. TENEX (operating system) - Wikipedia

    en.wikipedia.org/wiki/TENEX_(operating_system)

    The PDP-6 was expensive and complex, and therefore had not sold well. It was not long until it became clear that DEC was once again entering the 36-bit business with what would become the PDP-10. BBN started talks with DEC to get a paging subsystem in the new machine, then known by its CPU name, the KA-10.

  8. Programmed Data Processor - Wikipedia

    en.wikipedia.org/wiki/Programmed_Data_Processor

    PDP-1 PDP-6 PDP-7 PDP-8/e PDP-11/40 PDP-12 PDP-15 (partial) PDP-15 graphics terminal with light pen and digitizing tablet. Programmed Data Processor (PDP), referred to by some customers, media and authors as "Programmable Data Processor," [1] [2] [3] is a term used by the Digital Equipment Corporation from 1957 to 1990 for several lines of minicomputers.

  9. PDP-11 - Wikipedia

    en.wikipedia.org/wiki/PDP-11

    The PDP–11 is a series of 16-bit minicomputers sold by Digital Equipment Corporation (DEC) from 1970 into the late 1990s, one of a set of products in the Programmed Data Processor (PDP) series. In total, around 600,000 PDP-11s of all models were sold, making it one of DEC's most successful product lines.