Evolution & Development History In the juvenile 1960s a feature project between researchers at MIT, tam-tam Labs and General electric car led to the shape of a third generation of computing device direct(a) system of rules cognize as MULTICS (MULTiplexed Information and reckoning Service). It was envisaged as a computer utility, a machine that would take all over hundreds of simultaneous timesharing users. They envisaged one huge machine providing computing armed forces unit for everyone in Boston. The idea that machines as powerful as their GE-645 would be sold as personal computers costing however a few thousand dollars only 20 years posterior would have seemed like science fiction to them. and MULTICS turn verboten 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) consequently decided to come out a barren down var. of MULTICS, ab initio as a hobby. He used a PDP-7 minicomputer that no was using and wrote the code in assembly. It was initially a plain 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 appoint 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 now obsolete PDP-7 to the more more modern PDP-11/20 and hence later to the PDP-11/45 and PDP-11/70. These deuce latter computers had large memories as well as memory protection hardware, making it attainable to support three-fold users at the same time. Thompson then decided to rewrite UNIX in a high-level language called B. Unfortunately this search was non successful and Richie designed a successor to B called...
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