Explain how an operating system helps in meeting

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Unformatted text preview: e of a network operating system the user views the system as a collection of distinct computers, but in case of a distributed operating system the user views the system as a "virtual uniprocessor". 45. Deadlock is the state of permanent blocking of a set of processes each of which is waiting for an event that only another process in the set can cause. All the processes in the set block permanently because all the processes are waiting and hence none of them will ever cause any of the events that could wake up any of the other members of the set. 46. Spooling (Simultaneous Peripheral Operation On-Line) is a mechanism to reduce the speed mismatch between slow I/O devices and CPU, and to convert mutually exclusive I/O devices into non-mutually exclusive I/O devices. 47. The gap between the functionality of an operating system and the needs of users for frequently used routines is often bridged by a special category of software known as OS capability enhancement software. These software are normally grouped into three categories - translating programs, library programs, and utility programs. 48. Unix is a multi-user, time-sharing operating system. It is a very popular operating system and can be used on a wide variety of computers ranging from notebook computers to super computers. 49. MS-DOS stands for Microsoft Disk Operating System. It is a single-user operating system for IBM and IBM-compatible personal computers. It was introduced in 1981 jointly by Microsoft and IBM and was the most popular operating system for personal computers in the 1980s. 50. Microsoft Windows operating system was developed by Microsoft to overcome the limitations of its own MS-DOS operating system. The first successful version of this operating system was Windows 3.0, which was released in 1990. The subsequently released versions were Windows 95, Windows 98, and Windows 2000. It became an operating system of choice for most personal computer users after 1990. 51. Microsoft Windows NT is a multi-user...
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