Digital Equipment Corporation (DEC)'s PDP-10, later marketed as the DECsystem-10, is a mainframe computer family manufactured beginning in 1966 and discontinued in 1983.
Request a login. Empire for the PDP-10 (zip file of FORTRAN-10 source code download) from Classic Empire PDP-10 software archive at Trailing Edge The Personal Mainframe ad Computer World ad for Personal Mainframe PDP-10 documentation at Bitsavers === Newsgroups === [news:alt.sys.pdp10 alt.sys.pdp10] DEC hardware DEC mainframe computers Instruction set architectures 36-bit computers Computer-related introductions in 1966 Computers using bit-slice designs
For these reasons, the PDP-10 looms large in early hacker folklore. Projects to extend the PDP-10 line were eclipsed by the success of the unrelated VAX superminicomputer, and the cancellation of the PDP-10 line was announced in 1983. ==Models and technical evolution== The original PDP-10 processor is the KA10, introduced in 1968.
The KS10 emulation supports both ITS v.262 microcode for the final version of KS10 ITS and DEC v.130 microcode for the final versions of KS TOPS-10 and TOPS-20. ==See also== ITS TOPS-10 TOPS-20 WAITS == References == ===Sources=== DECsystem10 System Reference Manual (DEC, 1968, 1971, 1974) DECsystem-10/DECSYSTEM-20 Processor Reference Manual (DEC, 1982) == Further reading == C.
Xerox had just bought Scientific Data Systems (SDS) in 1969, and wanted PARC to use an SDS machine.
"incompatible" (despite each having a 36-bit CPU). The ITS name, selected by Tom Knight, "was a play on" the CTSS name. Tymshare developed TYMCOM-X, derived from TOPS-10 but using a page-based file system like TOPS-20. == Clones == In 1971 to 1972, researchers at Xerox PARC were frustrated by top company management's refusal to let them buy a PDP-10.
The KS10 emulation supports both ITS v.262 microcode for the final version of KS10 ITS and DEC v.130 microcode for the final versions of KS TOPS-10 and TOPS-20. ==See also== ITS TOPS-10 TOPS-20 WAITS == References == ===Sources=== DECsystem10 System Reference Manual (DEC, 1968, 1971, 1974) DECsystem-10/DECSYSTEM-20 Processor Reference Manual (DEC, 1982) == Further reading == C.
"incompatible" (despite each having a 36-bit CPU). The ITS name, selected by Tom Knight, "was a play on" the CTSS name. Tymshare developed TYMCOM-X, derived from TOPS-10 but using a page-based file system like TOPS-20. == Clones == In 1971 to 1972, researchers at Xerox PARC were frustrated by top company management's refusal to let them buy a PDP-10.
In 1973, the KA10 was replaced by the KI10, which uses transistor–transistor logic (TTL) SSI.
The KS10 emulation supports both ITS v.262 microcode for the final version of KS10 ITS and DEC v.130 microcode for the final versions of KS TOPS-10 and TOPS-20. ==See also== ITS TOPS-10 TOPS-20 WAITS == References == ===Sources=== DECsystem10 System Reference Manual (DEC, 1968, 1971, 1974) DECsystem-10/DECSYSTEM-20 Processor Reference Manual (DEC, 1982) == Further reading == C.
This was joined in 1975 by the higher-performance KL10 (later faster variants), which is built from emitter-coupled logic (ECL), microprogrammed, and has cache memory.
It was slightly faster than the newer VAX-11/750, although more limited in memory. A smaller, less expensive model, the KS10, was introduced in 1978, using TTL and Am2901 bit-slice components and including the PDP-11 Unibus to connect peripherals.
Hastings, Richard Hill, "The Evolution of the DECsystem 10", Communications of the ACM 21:1:44 (January 1978) , reprint in C.
McNamara, Computer Engineering: A DEC View of Hardware Systems Design] (Digital Press, 1978, ) == External links == 36 Bits Forever! PDP-10 Models — Shows CPUs and models PDP-10 stuff PDP10 Miscellany Page Life in the Fast AC's Columbia University DEC PDP-10 page Panda Programming TOPS-20 page Living Computers: Museum + Labs, a portal into the Paul Allen collection of timesharing and interactive computers, including an operational PDP-10 (KL-10).
The KS10 emulation supports both ITS v.262 microcode for the final version of KS10 ITS and DEC v.130 microcode for the final versions of KS TOPS-10 and TOPS-20. ==See also== ITS TOPS-10 TOPS-20 WAITS == References == ===Sources=== DECsystem10 System Reference Manual (DEC, 1968, 1971, 1974) DECsystem-10/DECSYSTEM-20 Processor Reference Manual (DEC, 1982) == Further reading == C.
Digital Equipment Corporation (DEC)'s PDP-10, later marketed as the DECsystem-10, is a mainframe computer family manufactured beginning in 1966 and discontinued in 1983.
For these reasons, the PDP-10 looms large in early hacker folklore. Projects to extend the PDP-10 line were eclipsed by the success of the unrelated VAX superminicomputer, and the cancellation of the PDP-10 line was announced in 1983. ==Models and technical evolution== The original PDP-10 processor is the KA10, introduced in 1968.
As of January 2007, CompuServe was operating a small number of PDP-10 architecture machines to perform some billing and routing functions. The main power supplies used in the KL-series machines were so inefficient that CompuServe engineers designed a replacement supply that used about half the energy.
This item is part of a computer museum, and was populated with LEDs in 2008 for demonstration purposes only.
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