The PDP-10 was eventually eclipsed by the VAX superminicomputer machines ( descendants of the PDP-11 ) when DEC recognized that the PDP-10 and VAX product lines were competing with each other and decided to concentrate its software development effort on the more profitable VAX.

Harvard officials were not pleased that Gates and Allen ( who was not a student ) had used the PDP-10 to develop a commercial product, but determined that this military computer was not covered by any Harvard policy ; the PDP-10 was controlled by Professor Thomas Cheatham, who felt that students could use the machine for personal use.

DEC recognized then that the PDP-10 and VAX product lines were competing with each other and decided to concentrate its software development effort on the more profitable VAX.

Learning from this mistake, the DEC sales manager in charge of the PDP-10 line managed to purchase the rights to TENEX from BBN and set up a project to port it to the new machine.

The first computer game to implement line of sight graphics was Dungeon, which was played on a PDP-10 mainframe computer ( 1975 ).

Some DEC PDP-10 machines stored their microcode in SRAM chips ( about 80 bits wide x 2 Kwords ), which was typically loaded on power-on through some other front-end CPU.

The PDP-10 was as much a success as the PDP-6 was a failure ; during its lifetime about 700 mainframe PDP-10s were sold before production ended in 1984.

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.

One of the most unusual peripherals produced for the PDP-10 was the DECtape.

Don Daglow wrote an enhanced version of the program called Ecala on a PDP-10 mainframe computer at Pomona College in 1973 before writing what was possibly the second or third computer role-playing game, Dungeon ( 1975 ) ( The first was probably " dnd ", written on and for the PLATO system in 1974, and the second may have been Moria, written in 1975 ).

The PDP-10 successor was to have been built by the Super Foonly project at the Stanford Artificial Intelligence Laboratory ( SAIL ) along with a new operating system.

The F-1 was the fastest PDP-10 ever built, with a clock rate of 90-100 ns per cycle, but only one was ever made.

The PDP-10 machine AI at MIT, which was running the ITS operating system and which was connected to the Arpanet, provided an early hacker meeting point.

Colossal Cave Adventure, created in 1975 by Will Crowther on a DEC PDP-10 computer, was the first widely used adventure game.

MIST ran until the machine that hosted it, a PDP-10, was superseded in early 1991.

The PDP-10 was a mainframe computer family manufactured by Digital Equipment Corporation ( DEC ) from the late 1960s on ; the name stands for " Programmed Data Processor model 10 ".

The PDP-10 architecture was an almost identical version of the earlier PDP-6 architecture, sharing the same 36-bit word length and slightly extending the instruction set ( but with improved hardware implementation ).

The original PDP-10 processor was the KA10, introduced in 1968.

The original PDP-10 operating system was simply called " Monitor ", but was later renamed TOPS-10.

Eventually the PDP-10 system itself was renamed the DECsystem-10.

Another modification made to the PDP-10 by CompuServe engineers was the replacement of the hundreds of incandescent indicator lamps on the KI10 processor cabinet with LED lamp modules.

This project was cancelled in 1983, as the PDP-10 was increasingly eclipsed by the VAX supermini machines ( descendants of the PDP-11 ).

* Living Computer Museum, a portal into the Paul Allen collection of timesharing and interactive computers, including an operational PDP-10 ( KL-10 )

That company adapted the PDP-10 Zork into Zork I-III, a trilogy of games for most popular small computers of the era, including the Apple II, the Commodore 64, the Commodore Plus / 4, the Atari 8-bit family, the TRS-80, CP / M systems and the IBM PC.

Digital Equipment Corporation developed many operating systems for its various computer lines, including TOPS-10 and TOPS-20 time sharing systems for the 36-bit PDP-10 class systems.

First written for the PDP-10, it was later ported to countless other platforms, including the Atari 2600 video game console, on which it was renamed to Adventure ( 1979 ) and contained action and graphical elements.

Other DEC operating systems also had PTYs, including RSTS / E for the PDP-11, as did the third-party TENEX operating system for the PDP-10.

DECtape, originally called " Microtape ", was a magnetic tape data storage medium used with many Digital Equipment Corporation computers, including the PDP-6, PDP-8, LINC-8, PDP-10, PDP-11, PDP-12, and the PDP-15.

Other versions of Runoff were developed for various computer systems including Digital Equipment Corporation's PDP-11 minicomputer systems running RT-11, RSTS / E, RSX on Digital's PDP-10 and for OpenVMS on VAX minicomputers, as well as Sperry Unisys Univac 90 / 60 mainframe using the EDT text editor under the VS / 9 operating system.

Star Trek was a text-based mainframe computer game written by Don Daglow on a PDP-10 timesharing computer at Pomona College in 1972, and upgraded periodically through 1974, including contributions by Jonathan Osser.

The Jupiter project was to be a successor to Digital Equipment Corporation ( DEC )' s PDP-10 mainframe computer model.

While this was going on, Stanford University AI programmers, many of them MIT alumni, were working on their own project to build a PDP-10 that was ten times faster than the original KA-10.

The PDP-10 version of Interlisp became Interlisp-10 ; BBN had an internal project to build Interlisp-Jericho and there was a 1982 port to Berkeley Unix on the VAX by Stanford University, ISI and Xerox PARC, called Interlisp-VAX.

Later, Systems Concepts attempted to produce a compatible replacement for the DEC PDP-10 computers.

But as integrated circuit technology shrank the size and cost of computers in the 1960s and early 1970s, and the memory requirements of AI programs started to exceed the address space of the most common research computer, the DEC PDP-10, researchers considered a new approach: a computer designed specifically to develop and run large artificial intelligence programs, and tailored to the semantics of the Lisp programming language.

This plan eventually backfired ; by this point TENEX was one of the most popular PDP-10 operating systems, and it would not run on the new machines.

NASA also decided to replace the B6500 with a PDP-10, which were in common use at Ames, but this required the development of new compilers and support software.

Not long after this rumors started to spread that they were, in fact, working on a new 36-bit design, which was eventually released as the PDP-10.

Greenblatt was convinced by Ed Fredkin that time-sharing systems could be more beneficial, so he set out, along with Nelson, to write a new time-sharing system called ITS, or Incompatible Time-sharing System, initially for the PDP-6, and later the PDP-10.

Tymnet operations formed a strategic alliance with the Tymshare PDP-10 TYMCOM-X operating systems group to assist them in developing new network management tools.

A computer terminal connected to the Claremont Colleges PDP-10 mainframe computer was set up in his dorm, and he saw this as a new form of writing.