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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
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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
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Handles technical details
Works with end users, application software, and computer hardware.
System software controls where a word processing program is stored in memory.
How commands are converted so that the system unit can process
Them.
 How the output is printed.
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System Software cont .

Operating system: programs that coordinate computer resources, provide a user interface and run applications.

Utilities( service programs): perform specific tasks to managing computer resources.

Device drivers: allow I/O devices to communicate with the rest of the computer system.

Language translators: convert the programming instruction into a language that computer understand and process.
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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
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cont
Recourses: memory, HDD, printer
User interface: old OS used character based interface.
applications
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Features of an Operating System
Booting
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cont
computer already on
start computer that has been turned off
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Features in common with application software
Icons
Pointers
Windows
Menus
Dialog boxes
Provide information or request input
Help
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5-10

Hundreds of operating systems
Three basic categories
Embedded – hand-held
Or small devices like PDA’s
OS stored in ROM
Palm OS or windows CE
Network OS – linked computers
Windows NT server, UNIX, Z/OS http://www-03.ibm.com/servers/eserver/zseries/zos/
Stand-alone OS – desktop
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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
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The most popular microcomputer operating system
Comes in a variety of different versions
Windows 7 is the latest version
© 2005 The McGraw-Hill Companies, Inc. All Rights Reserved.

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An operating system designed to run on Apple computers
Not used as widely as Windows
HW2
1- fill the blank
Mac OS …. is the latest version
2- Attach the main interface of this OS.
3- Introduction about this OS
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5-15

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
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Specialized programs to make computing easier
Most essential utilities
Troubleshooting
Antivirus
Uninstall
Backup
File compression
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Backup
Disk Cleanup
Disk Defragmenter
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A group of several utility programs bundled for sale
Buying the package is economical
Popular suites eSafe Desktop
McAfee Office
Norton System Works
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© 2005 The McGraw-Hill Companies, Inc. All Rights Reserved.

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
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© 2005 The McGraw-Hill Companies, Inc. All Rights Reserved.

IBM concentrating research efforts on eLiza
Handles time-consuming maintenance
Autonomic computer
Self-maintaining servers
Self-repairing
Self-protecting
Self-updating
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© 2005 The McGraw-Hill Companies, Inc. All Rights Reserved.

antivirus utility (128) application (128) background (123) cold boot (123) computer virus (132) desktop (123) backup (129) backup program (128) desktop operating system
(125) booting ( 123) character based interface
(123) client operating system
(125) device driver (122) diagnostic utility (128) dialog box (124)
Disk cleanup (130)
Disk defragmenter (131)
© 2005 The McGraw-Hill Companies, Inc. All Rights Reserved.
5-25

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)
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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)
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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)
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© 2005 The McGraw-Hill Companies, Inc. All Rights Reserved.

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?
© 2005 The McGraw-Hill Companies, Inc. All Rights Reserved.
5-29

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.
© 2005 The McGraw-Hill Companies, Inc. All Rights Reserved.
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