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System Software: Operating Systems and Utility Programs: Jazan University - 20201 1

The document discusses system software and operating systems. It defines system software as background programs that control the computer system by mediating between application programs, hardware, and the user. The operating system is described as a collection of programs that manage activities within a computer system, including interfacing with users, booting the computer, managing resources and files, and providing security. Popular desktop operating systems are then outlined, including Windows, Mac OS, Linux, and older systems like DOS. Mobile operating systems are also briefly mentioned.

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suheeb Araf
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49 views16 pages

System Software: Operating Systems and Utility Programs: Jazan University - 20201 1

The document discusses system software and operating systems. It defines system software as background programs that control the computer system by mediating between application programs, hardware, and the user. The operating system is described as a collection of programs that manage activities within a computer system, including interfacing with users, booting the computer, managing resources and files, and providing security. Popular desktop operating systems are then outlined, including Windows, Mac OS, Linux, and older systems like DOS. Mobile operating systems are also briefly mentioned.

Uploaded by

suheeb Araf
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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You are on page 1/ 16

System Software:

Operating Systems and


Utility Programs

Chapter 7
101 CSC- 3

Jazan University | 20201 1


System Software and Application Software
• System software: Background programs that control a
computer system
– Acts as a mediator between application programs and
the computer system’s hardware, as well as between
the PC and the user

• Application software: Programs that allow a user to


perform specific tasks on a computer
– Word processing, playing a game, preparing taxes,
browsing the Web, and so forth.

Chapter 7 2
The Operating System
• Operating system: A collection of programs that manage
and coordinate the activities taking place within a
computer system.

Chapter 7 3
Functions of an Operating System

• Interfacing with users (typically via a GUI)

• Booting the computer

• Configuring devices

• Managing resources and jobs

• File management

• Security

Chapter 7 4
Differences Among Operating Systems
• Command line: Commands are entered by the keyboard

• Graphical user interface (GUI): Icons, Buttons, and


menus are selected by mouse to issue commands.

– Most operating systems use GUI today

Command line GUI

Chapter 7 5
Differences Among Operating Systems

– Personal operating system: designed to be installed


on a single PC

– Server operating system: designed to be installed on


a network server

Chapter 7 6
Operating Systems for
Desktop PCs and Servers

• Most PCs today run Windows, Mac OS, or Linux

• DOS: Older operating system created originally for IBM


microcomputers, used a command-line interface.

Chapter 7 7
Windows
• Windows: The primary PC operating system developed
by Microsoft Corporation

– Windows 1.0 through Windows 3.x

– Windows 95, 98, 98(SE).

– Windows NT (New Technology)


– Windows Me (Millennium Edition)
– Windows 2000, XP, Vista, 7, 8, and windows 10
– Windows Server.

Chapter 7 8
Windows 10

9
Mac OS

• Mac OS: Proprietary operating system for computers


made by Apple Corporation

Examples:
– MacOS Mojave (10.14.x.)
– MacOS 10.14 (Server 5.8)

Chapter 7 10
MacOS Mojave (10.14.x.)

Chapter 7 11
UNIX
• UNIX: Operating system developed in the late 1960s for
midrange servers and mainframes

– Multiuser, multitasking operating system

– More expensive, requires a higher level of PC


knowledge.

Chapter 7 12
Linux
• Linux: Version (flavor) of UNIX available without charge
over the Internet

– Is open-source software: has been collaboratively


modified by volunteer programmers all over the world

Chapter 7 13
Operating Systems for
Mobile Phones and Other Devices

• iPhone OS: Designed for Apple Mobile phones and


mobile devices.

• BlackBerry Operating System: Designed for BlackBerry


devices

• Palm OS and Palm webOS: Designed for Palm devices


• Symbian OS: Designed for use with smart phones
• Embedded Linux: Used with mobile phones, GPS
devices, and other mobile devices

14
Operating Systems for
Handheld PCs and Mobile Devices

Chapter 7 15
Utility Programs
• Utility program: Type of software that performs a
specific task, usually related to managing or maintaining
the computer system

• Many utilities are built into operating systems (for finding


files, viewing images, backing up files, etc.)

Chapter 7 16

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