Friday, April 19, 2013

Types of operating system


1. Single-user, multitask operating system
A personal computer, desktop, notebook or even a tablet PC is handled by only one person at a
time, but can perform a variety of tasks at a time, hence it uses a single-user, multitask operating
system. The Microsoft Windows operating system and Macintosh operating system (Mac OS) are
most commonly used single-user multitask operating systems.
2. Multiuser operating system
A multiuser operating system enables more than one user to access the computer system at one
time by efficiently handling and prioritizing all the requests from multiple user. Networks require a
multiuser operating system because many users access the server computer at the same time and
share resources such as printers. Examples of network operating systems include Linux, UNIX,
Novell Netware and Windows Server.
Large corporations with hundreds of employees use computers known as mainframes. Mainframe
operating systems are multiuser and examples are UNIX and IBM’S OS/2 and z/OS.
Scientists and engineers use super computers to solve complex problems or to perform massive
computations. It also uses multiuser operating systems.
Some popular operating systems are as follows:-




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