1. Copyright 2003 The McGraw-Hill Companies, Inc. 1 3 3 CHAPTER System Software computing ESSENTIALS    

2. Copyright 2003 The McGraw-Hill Companies, Inc. 2 Competencies System software Function of operating systems Categories of operating systems Utilities Device drivers Language translators computing ESSENTIALS    

3. Copyright 2003 The McGraw-Hill Companies, Inc. 3 Systems Software Handles technical details without user intervention Collection of programs Operating system Utilities Device drivers Language translators computing ESSENTIALS    

4. Copyright 2003 The McGraw-Hill Companies, Inc. 4 Operating Systems Basic functions Manage resources Provide user interface Run applications computing ESSENTIALS    

5. Copyright 2003 The McGraw-Hill Companies, Inc. 5 Operating System Categories Many different operating systems Three basic categories Embedded Network Stand-alone computing ESSENTIALS    

6. Copyright 2003 The McGraw-Hill Companies, Inc. 6 Embedded Operating System Used in handheld computers Stored within device in Read-Only Memory Example Windows CE Palm OS computing ESSENTIALS    

7. Copyright 2003 The McGraw-Hill Companies, Inc. 7 Network Operating System Controls and coordinates linked computers Network Server Coordinates communication with other computers Example Novell NetWare Windows NT Server UNIX computing ESSENTIALS    

8. Copyright 2003 The McGraw-Hill Companies, Inc. 8 Stand-Alone Operating System Desktop operating system Controls a single desktop or laptop computer Can be part of network Works with network’s NOS Client operating system Example Windows XP, MacOS computing ESSENTIALS    

9. Copyright 2003 The McGraw-Hill Companies, Inc. 9 Microsoft Windows Most popular OS for microcomputers Designed for Intel processors Active Desktop Graphical user interface to OS Windows XP, Windows 2000 Windows CE computing ESSENTIALS    

10. Copyright 2003 The McGraw-Hill Companies, Inc. 10 Apple MacOS Runs on Macintosh computers Designed for PowerPC microprocessors OS X Latest version OS Aqua Dock Sherlock computing ESSENTIALS    

11. Copyright 2003 The McGraw-Hill Companies, Inc. 11 UNIX Originally ran on mainframe and minicomputers Used for large servers on the Web Popular alternative to Windows Several versions available Solaris 8 Linux computing ESSENTIALS    

12. Copyright 2003 The McGraw-Hill Companies, Inc. 12 Utilities Specialized programs for system maintenance Fix system problems Increase system efficiency Protect system computing ESSENTIALS    

13. Copyright 2003 The McGraw-Hill Companies, Inc. 13 Essential Utilities Troubleshooting Antivirus Uninstall Backup File compression computing ESSENTIALS    

14. Copyright 2003 The McGraw-Hill Companies, Inc. 14 Windows Utilities Accessed from System Tools menu Backup Copy all or selected files Disk Cleanup Identifies and removes unused files Disk Defragmenter Locates and eliminates file fragments computing ESSENTIALS    

15. Copyright 2003 The McGraw-Hill Companies, Inc. 15 Utility Suites Bundle several utility programs into one package Norton SystemWorks Norton SystemWorks McAfee Office eSafe Desktop computing ESSENTIALS    

16. Copyright 2003 The McGraw-Hill Companies, Inc. 16 Device Drivers Allow devices to communicate with computer system Loaded into memory at system start-up New devices require new device driver Drivers provided with operating system or from device manufacturer Download from Web site computing ESSENTIALS    

17. Copyright 2003 The McGraw-Hill Companies, Inc. 17 Language Translators Translate programming language into machine language Words into 0’s and 1’s Programming languages C++, C# Perl Visual Basic Java computing ESSENTIALS    

18. Copyright 2003 The McGraw-Hill Companies, Inc. 18 A Look to the Future IBM concentrating research efforts on eLiza Handle time-consuming maintenance Autonomic computing Self-maintaining Self-repairing Self-updating computing ESSENTIALS    