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5. CHAPTER. SYSTEM SOFTWARE. Competencies. 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 cont.
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5 CHAPTER SYSTEM SOFTWARE
Competencies • 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 cont. • 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
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
Operating Systems • A collection of programs that handles technical tasks • Every computer has an operating system • Performs three types of functions • Manages computer resources • Provides user interface • Runs applications
Features of an Operating System • Booting • Features in common with application software • Icons • Pointers • Windows • Menus • Dialog boxes
Categories of Operating Systems • Hundreds of operating systems • Three basic categories • Embedded – hand-held • Network OS – linked computers • Stand-alone OS – desktop
More on Operating Systems • OS often called software environment or platform • Operating systems commonly used by individuals • Mac OS – powerful and easy to use • UNIX – network; originally designed for Web • LINUX – non proprietary; free off Web
Windows • The most popular microcomputer operating system • Comes in a variety of different versions • Windows XP is the latest version
Mac OS • An operating system designed to run on Apple computers • Not used as widely as Windows • Mac OS X is the latest version
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
Utilities • Specialized programs to make computing easier • Most essential utilities • Troubleshooting • Antivirus • Uninstall • Backup • File compression
Windows Utilities • Backup • Disk Cleanup • Disk Defragmenter
Utility Suites • A group of several utility programs bundled for sale • Buying the package is economical • Popular suites • eSafe Desktop • McAfee Office • Norton System Works
Device Drivers • Specialized programs that allow communication between a device and the computer • Loaded into memory each time • When a new device is added, new device drive must be installed
A Look to the FutureIBM's Aware Computer • IBM concentrating research efforts on eLiza • Handles time-consuming maintenance • Autonomic computer • Self-maintaining servers • Self-repairing • Self-protecting • Self-updating
antivirus utility (128) application (128) background (123) backup (129) backup program (128) booting ( 123) character based interface (123) client operating system (125) cold boot (123) computer virus (132) desktop (123) desktop operating system (125) device driver (122) diagnostic utility (128) dialog box (124) Disk cleanup (130) Disk defragmenter (131) Key Terms
Dock (127) driver (133) embedded operating system (124) file (124) file compression utility (128) folder (124) foreground (123) fragmented (131) graphical user interface (GUI) (123) Help (124) icon (123) language translator (122) Linux (127) Mac OS (127) Mac OS X (127) menu (123) Key Terms
multitasking (123) network operating system (NOS) (124) One Button Checkup (125) open source (132) operating system (125) platform (122) pointer (125) proprietary operating system (123) resource (123) sector (131) service program (122) Sherlock (127) software environment (125) software platform (125) stand-alone operating system (125) Start menu (126) Key Terms
system software (122) track (131) troubleshooting utility (128) uninstall utility (128) UNIX (127) user interface (123) utility (122) utility suite (132) warm boot (123) Window (123) Windows (125) Windows Add Printer Wizard (133) Windows Update (133) Windows XP (136) Key Terms
FAQs • What is an operating system? • What is the difference between a warm boot and a cold boot? • What kinds of devices use embedded operating systems? • I need to remove a program that I no longer use. How can I do this? • What software is needed to install a new device on my desktop computer?
Discussion Questions • Describe how files are stored and organized on a disk. • Describe some of the programs in the Norton SystemWorks utility suite. • Explain the purpose of an operating system. • List the different versions of the Windows operating system. • Explain how multitasking works.