Evolution & Development History In the new 1960s a feature project between researchers at MIT, ships bell Labs and General electric car led to the public figure of a third generation of computing device in operation(p) system cognize as MULTICS (MULTiplexed Information and reckoning Service). It was envisaged as a computer utility, a machine that would take everywhere hundreds of simultaneous timesharing users. They envisaged one huge machine providing computing phalanx unit for everyone in Boston. The idea that machines as powerful as their GE-645 would be sold as personal computers costing only(prenominal) a few thousand dollars only 20 age posterior would have seemed like science fiction to them. all the same MULTICS turn forth more difficult than imagined to implement and Bell Labs withdrew from the project in 1969 as did General Electric, dropping out of the computer production line altogether. One of the Bell Labs researchers (Ken Thompson) wherefore de cided to fiat a barren down var. of MULTICS, initially as a hobby. He used a PDP-7 minicomputer that no was using and wrote the code in assembly. It was initially a marginal down, single user version of MULTICS but Thompson actually got the system to work and one of his colleagues banteringly called it UNICS (UNiplexed Information and Computing Service). The pass water stuck but the spelling was ulterior changed to UNIX. Soon Thompson was joined on the project by Dennis Richie and later(prenominal) by his entire department. UNIX was moved from the this instant obsolete PDP-7 to the more more modern PDP-11/20 and consequently later to the PDP-11/45 and PDP-11/70. These dickens latter computers had large memories as well as memory protection hardware, making it practical to support three-fold users at the same time. Thompson then decided to rewrite UNIX in a high-level language called B. Unfortunately this enterprise was non successful and Richie designed a successor t o B called... !
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