OPERATING SYSTEMS AND SYSTEMS

SOFTWARE

SYSTEMS SOFTWARE

• Systems software consists of the programs that control the operations of the computer and its devices.• Starting up the computer•Opening, executing and running applications• Storing, retrieving and copying files• Formatting disks• Reducing file sizes• Backing up the contents of the hard drive

There are 2 types of systems software:

• Operating systems• Utilitys

Operating Systems• An operating system (OS) is a set of programs containing instructions that

work together to coordinate all the activities among computer hardware resources

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Start and shut down a

computer

Provide a user interface

Manage programs

Manage memory

Coordinate tasks

Configure devices

Establish an Internet

connection

Monitor performance

Provide utilities Automatically update

Control a network

Administer security

THE BOOT PROCESS

• The process of starting or restarting a computer is called booting

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Cold boot

• Turning on a computer that has been powered off completely

Warm boot

• Using the operating system to restart a computer

Operating System Functions

• How an operating system handles programs directly affects your productivity

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Single user and multiuser

Single tasking and

multitasking

Foreground and background Multiprocessing

Operating System Functions

• The operating system determines the order in which tasks are processed

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Stand-Alone Operating Systems• Windows 7 is Microsoft’s fastest, most efficient operating

system to date and is available in multiple editions:

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Windows 7 Starter

Windows 7 Home

Premium

Windows 7 Ultimate

Windows 7 Professional

Server Operating Systems

Windows Server 2008 UNIX Linux

Solaris NetWare

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Embedded Operating Systems

• An embedded operating system resides on a ROM chip on a mobile device or consumer electronic device

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Windows Embedded CE

Windows Mobile Palm OS iPhone OS

BlackBerry Google Android

Embedded Linux Symbian OS

Utility programs

•Utility software is a kind of system software designed to help analyze, configure, optimize and maintain the computer. A single piece of utility software is usually called a utility or tool.

POPULAR OPERATING SYSTEMS