Chapter 7

Operating Systems

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OBJECTIVES

After reading this chapter, the reader should be able to:

Define the purpose and functions of an operating system. Understand the components of an operating system. Understand the concept of virtual memory.

Understand the concept of deadlock and starvation. List some of the characteristics of popular operating systems such as Windows 2000, UNIX, and Linux.

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Figure 7-1

Computer System

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7.1
DEFINITION

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Note:

An operating system is an interface between the hardware of a computer and the user (program or human) that facilitates the execution of the other programs and the access to hardware and software resources.

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7.2
EVOLUTION

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7.3

COMPONENTS

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Figure 7-2

Components of an operating system

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Figure 7-3

Monoprogramming

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Figure 7-4

Multiprogramming

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