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Chapter 8: Operating Systems and Utility Programs.

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Presentation on theme: "Chapter 8: Operating Systems and Utility Programs."— Presentation transcript:

1 Chapter 8: Operating Systems and Utility Programs

2 System Software What is system software? Next p Operating system (OS) (sometimes called the platform) coordinates all activities among computer hardware resources Programs that control operation of computer Two types are operating systems and utility programs

3 Operating Systems What are the functions of an operating system? Next p. 251 Fig. 7-1 monitor performance provide a user interface provide file management and other utilities establish an Internet connection control a network administer security start the computermanage programs schedule jobs and configure devices manage memory

4 Operating Systems What is a cross-platform application? Next p. 252 Operating System/ Platform A Operating System/ Platform B Operating System/ Platform C Operating System/ Platform D Application Runs identically on multiple operating systems Operating system that computer uses is sometimes called the platform: PowerPoint is an example of this.

5 Operating System Functions What is booting? Next p. 252 Fig. 7-2 Cold boot Turning on computer that has been powered off Warm boot Restarting computer that is powered on Process of starting or restarting a computer

6 Operating System Functions What is a graphical user interface (GUI)? Next p. 253 Fig. 7-3b User interacts with menus and visual images such as icons and buttons

7 Operating System Functions What is a driver? Next p. 256 Driver Program that tells operating system how to communicate with device With Plug and Play, operating system automatically configures new devices as you install them Click to view Web Link, click Chapter 7, Click Web Link from left navigation, then click Plug and Play below Chapter 7

8 Operating System Utility Programs What is a utility program? Next p. 259 Fig. 7-8 System software that performs maintenance-type tasks Also called utility

9 Operating System Utility Programs What is a personal firewall? Next p. 260 Figs Detects and protects a personal computer from unauthorized intrusions The latest update to Windows XP automatically enables the built- in personal firewall upon installation Click to view Web Link, click Chapter 7, Click Web Link from left navigation, then click Personal Firewalls below Chapter 7

10 Operating System Utility Programs What is a disk defragmenter? Next p. 261 Fig file before defragmenting fragmented disk file after defragmenting Reorganizes files and unused space on hard disk so programs run faster

11 Stand-Alone Operating Systems What is DOS (Disk Operating System)? Next p. 262 D Developed in early 1980s for personal computers O Used command-line interface when first developed, later included menus S Hardly used today because it does not offer GUI

12 Stand-Alone Operating Systems What is Mac OS X? Next p. 264 Fig Available only for computers manufactured by Apple Macintosh operating system has been model for most GUIs Click to view Web Link, click Chapter 7, Click Web Link from left navigation, then click Mac OS X below Chapter 7

13 Stand-Alone Operating Systems What is UNIX? Next p. 264 Fig Used by power users because of its flexibility and power Most versions offer GUI Both a stand-alone and a network operating system Click to view Web Link, click Chapter 7, Click Web Link from left navigation, then click UNIX below Chapter 7

14 Stand-Alone Operating Systems What is Linux? Next p. 265 Fig Red Hat provides a version of Linux called Red Hat Linux. Popular, free, multitasking UNIX-type operating system Open-source software e code is available to public Both a stand-alone and a network operating system


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