McGraw-Hill Technology Education © 2006 by the McGraw-Hill Companies, Inc. All rights reserved. 55 CHAPTER SYSTEM SOFTWARE

CE06_PP05-2 Describe the differences between system software and application software Discuss the four types of system software Discuss operating systems Describe Windows, Mac, OS, UNIX, & Linux Competencies (Page 1 of 2) Page 120

CE06_PP05-3 Describe the purpose of utilities and utility suites Identify the five most essential utilities Discuss Windows utility programs Describe the device drivers, including printer drivers Competencies (Page 2 of 2) Page 120

CE06_PP05-4 System Software Handles technical details Works with end users, application software, and computer hardware Four types of programs Operating system Utilities Device drivers Language translators Page 122

CE06_PP05-5 Operating Systems A collection of programs that handle technical tasks Every computer has an operating system Performs three types of functions Manages computer resources Provides user interface Runs applications Page 123

CE06_PP05-6 Features of an Operating System Booting Features in common with application software Icons Pointers Windows Menus Dialog boxes Help Page 123

CE06_PP05-7 Categories of Operating Systems Hundreds of operating systems Three basic categories Embedded – hand-held Network OS – linked computers Stand-alone OS – desktop Page 124

CE06_PP05-8 More on Operating Systems OS often called software environment or platform Operating systems commonly used by individuals Windows – most widely used Mac OS – powerful and easy to use UNIX – network; originally designed for Web LINUX – non proprietary; free from the Web Page 125

CE06_PP05-9 Windows The most popular microcomputer operating system – over 90 percent of the market Comes in a variety of different versions Windows XP is the latest version Page 126

CE06_PP05-10 Mac OS An operating system designed to run on Apple computers Not used as widely as Windows Mac OS X is the latest version Page 127

CE06_PP05-11 UNIX and Linux Unix operating system Originally designed to run on minicomputers on a network Used by powerful microcomputers Linux is a version of UNIX Not proprietary Open source Page 127

CE06_PP05-12 Utilities Specialized programs to make computing easier Most essential utilities Troubleshooting (diagnostic) Antivirus Uninstall Backup File compression Page 128

CE06_PP05-13 Windows Utilities Backup Disk CleanUp Disk Defragmenter Page 128

CE06_PP05-14 Backup Utility program included with many Windows versions Page 129

CE06_PP05-15 Disk CleanUp Identifies and eliminates nonessential files Page 129

CE06_PP05-16 Disk Defragmenter Page 131 Identifies and eliminates unnecessary fragments

CE06_PP05-17 Utility Suites A group of several utility programs bundled for sale Buying the package is economical Popular suites McAfee Office Norton System Works V Communications SystemSuite Page 131

CE06_PP05-18 Device Drivers Specialized programs that allow communication between a device and the computer Loaded into memory each time a computer is started When a new device is added, new device drivers must be installed Page 133

CE06_PP05-19 A Look to the Future IBM's Aware Supercomputer IBM concentrating research efforts on eLiza Handles time-consuming maintenance Autonomic computer Self-maintaining servers Self-repairing Self-updating Self-protecting Page 137

CE06_PP05-20 Describe system software. What are the four types of system programs? What are the basic functions of every operating system? What are the three basic operating system categories? Explain the differences and similarities between Windows, Mac OS, and Linux. Page 143 Discussion Questions (Page 1 of 2)

CE06_PP05-21 Discuss utilities. What are the five most essential utilities? What is a utility suite? Explain the role of device drivers. Discuss the Add Printer Wizard and Windows Update. Page 143 Discussion Questions (Page 2 of 2)