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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.
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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- Spring '14