... computer uses to accomplish a task, provides computer power, but cannot use it. To make the power that the hardware provides useful, an Operating System is needed because it makes this power usable. Operating System, which are resource managers, manage the computer hardware and makes them conveniently available to the users. In a computer , the Operating System plays the main integral role, since many functions such as the user interface implementation, share of hardware among users, prevention of interference of a user with another, resource scheduling of users, allowance of data share among users, Input/Output facilitation, error recovery, resource usage accounting, parallel operation facilitation, secure and rapid data access organisation, and network communications handling. In comparison with the systems of 1950s the computers in 1960s were also batch processing systems, but they allowed multitasking, i.e. allowed to run several tasks at a time. Moreover, they contained many peripheral devices such ...

See this essay or coursework document in full right now