221
edits
Changes
→Unix OS
* interactive - i.e. users can use the computer directly, and immediately see the results of their actions
* a multitasking environment - the operating system creates the illusion of performing multiple tasks at the same time by rapidly switching between them
* a Multimulti-user environment - it provides features necessary to support multiple users, including file security and the ability to interact with several people at once.* Unix became very popular because Bell Labs (AT&T) distributed it at almost no cost to colleges and universities, which who then taught students operating system systems programming using the Unix source code; these students later entered the industry and wanted to continue to use this powerful, familiar operating system.
* Hardware vendors appreciated an operating system which could easily be configured for new hardware, rather than reinventing the wheel each time a new family of computers was introduced. In fact, Unix/Linux now runs on system ranging from watches to huge mainframes.
* Unix and the Internet grew up hand-in-hand (the DARPANET project, precursor to the Internet, was approved in April 1969 — the same month that Bell pulled out of the Multics project and began the development of Unix; throughout the history of the Internet, the Unix OS has provided its platform.
