Computer History: Operating Systems

Roger's Vault

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Computer operating systems (OS) provide a set of functions needed and used by most applications, and provide the necessary linkages to control a computer’s hardware. On the first computers, without an operating system, each program would have to have drivers for your video card, memory card, and other peripherals. The evolution of the computer applications and their complexity led to the OS necessities.

Early computers lacked any form of operating system. The user had sole use of the machine; he would arrive at the machine armed with his program and data, often on punched paper tape. The program would be loaded into the machine, and the machine set to work, until the program stopped, or maybe more likely, crashed. Programs could generally be debugged via a front panel using switches and lights; it is said that Alan Turing was a master of this on the…

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