1. System Software © 2013 The McGraw-Hill Companies, Inc. All rights reserved.Computing Essentials 2013

2. System Software © 2013 The McGraw-Hill Companies, Inc. All rights reserved.Computing Essentials 2013 5-2  Describe the differences between system software and application software.  Discuss the four types of system software.  Discuss the basic functions, features, and categories of operating systems.  Describe Windows, Mac OS, UNIX, Linux, and virtualization.

3. System Software © 2013 The McGraw-Hill Companies, Inc. All rights reserved.Computing Essentials 2013 5-3  Describe the purpose of utilities and utility suites.  Discuss mobile operating systems including Symbian, Blackberry OS, iOS, Android, Windows Phone 7, and WebOS.  Identify the five most essential utilities.  Discuss Windows utility programs.  Describe device drivers, including Windows’ Add a Device Wizard and Update.

4. System Software © 2013 The McGraw-Hill Companies, Inc. All rights reserved.Computing Essentials 2013 5-4  Computers are ubiquitous in our lives and we expect them to “be there when we need them”.  We give little thought to the processes and programs running behind the scenes to keep them functioning effectively.  Such programs (i.e. operating systems, utility programs, and device drivers) are the system software you learn about here.

5. System Software © 2013 The McGraw-Hill Companies, Inc. All rights reserved.Computing Essentials 2013 5-5  Handles the technical details  Includes the operating system, utilities, device drivers, and language translators

6. System Software © 2013 The McGraw-Hill Companies, Inc. All rights reserved.Computing Essentials 2013 5-6  A collection of programs that handle technical tasks  Manage resources  Provide user interface  Run applications  Examples:  Windows 7  Mac OS X  Also called the software environment or platform

7. System Software © 2013 The McGraw-Hill Companies, Inc. All rights reserved.Computing Essentials 2013 5-7  Manages computer resources  Coordinate memory, processing, storage, printers and monitors  Monitor system performance  Schedule tasks  Provide security  Start-up the computer  Provides user interface  Graphical user interface (GUI)  Runs applications  Multitasking  Foreground and background applications

8. System Software © 2013 The McGraw-Hill Companies, Inc. All rights reserved.Computing Essentials 2013 5-8  Booting  Features in common with application software  Icons  Pointer  Windows  Menus  Tabs  Dialog boxes  Help

9. System Software © 2013 The McGraw-Hill Companies, Inc. All rights reserved.Computing Essentials 2013 5-9  Three basic categories  Embedded operating systems (handheld)  Smartphones  Cable TV tuner boxes  Video game systems  Network operating systems (linked computers)  Windows Server  Unix  OS stored on network server which coordinates all communication between the other computers  Stand-alone operating systems (desktop)  Also called client operating system

10. System Software © 2013 The McGraw-Hill Companies, Inc. All rights reserved.Computing Essentials 2013 5-10  The OS is often called the software environment or platform  Operating systems commonly used by individuals  Windows – most widely used Windows  Mac OS – powerful and easy to use Mac OS  UNIX – network; originally designed for Web UNIX  LINUX – non proprietary; free from the Web LINUX

11. System Software © 2013 The McGraw-Hill Companies, Inc. All rights reserved.Computing Essentials 2013 5-11  The most popular microcomputer operating system  Over 90 percent of the market  Windows 7 provides several improvements over Windows Vista Return

12. System Software © 2013 The McGraw-Hill Companies, Inc. All rights reserved.Computing Essentials 2013 5-12  Mac OS X runs on Apple computers  Popular with graphic designers and desktop publishers  Features include  Spotlight  Dashboard Widgets  Boot Camp

13. System Software © 2013 The McGraw-Hill Companies, Inc. All rights reserved.Computing Essentials 2013 5-13  Mac OS v 10.7 - also known as Lion  Photo-quality icons and easy-to-use menus  Launchpad  Displays and provides access to all apps installed  Mission Control  Displays all running programs at one time  Gestures  Allow you to use your fingers to run programs and to control content on the screen Return

14. System Software © 2013 The McGraw-Hill Companies, Inc. All rights reserved.Computing Essentials 2013 5-14  UNIX operating system  Servers on the Web  Mainframe computers  Microcomputers Return

15. System Software © 2013 The McGraw-Hill Companies, Inc. All rights reserved.Computing Essentials 2013 5-15  LINUX - version of UNIX  Alternative to windows  Open source  Not proprietary  Google Chrome OS based on Linux Return

16. System Software © 2013 The McGraw-Hill Companies, Inc. All rights reserved.Computing Essentials 2013 5-16  Ability to support multiple operating systems on a single physical machine  Virtualization software  Physical machine can be logically separated into separate and independent virtual computers called virtual machines  Host operating system  Guest operating system

17. System Software © 2013 The McGraw-Hill Companies, Inc. All rights reserved.Computing Essentials 2013 5-17  Mobile OS  Embedded operating system in every smartphone  Some of the best known  Symbian  BlackBerry OS or RIM OS  iOS  Android  Windows Phone 7  WebOS

18. System Software © 2013 The McGraw-Hill Companies, Inc. All rights reserved.Computing Essentials 2013 5-18  Specialized programs to make computing easier  Most essential utilities  Troubleshooting or diagnostic programs  Antivirus programs  Uninstall programs  Backup programs  File compression programs

19. System Software © 2013 The McGraw-Hill Companies, Inc. All rights reserved.Computing Essentials 2013 5-19  Backup and Restore Backup and Restore  Disk Cleanup Disk Cleanup  Disk Defragmenter Disk Defragmenter

20. System Software © 2013 The McGraw-Hill Companies, Inc. All rights reserved.Computing Essentials 2013 5-20  Utility program included with many Windows versions  Makes a copy of all files or selected files that have been saved on a disk  Helps prevent against loss of data in the event of a disk failure Return

21. System Software © 2013 The McGraw-Hill Companies, Inc. All rights reserved.Computing Essentials 2013 5-21  Identifies and eliminates nonessential files  Frees up valuable space and improves system performance Return

22. System Software © 2013 The McGraw-Hill Companies, Inc. All rights reserved.Computing Essentials 2013 5-22  Identifies and eliminates unnecessary fragments  Rearranges files and unused disk space to optimize operations  Speeds up file access Return

23. System Software © 2013 The McGraw-Hill Companies, Inc. All rights reserved.Computing Essentials 2013 5-23  Combine several programs into one package  Less expensive  Popular suites  Norton 360  McAfee Office  V Communications SystemSuite

24. System Software © 2013 The McGraw-Hill Companies, Inc. All rights reserved.Computing Essentials 2013 5-24  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  Windows already has many drivers within the system software

25. System Software © 2013 The McGraw-Hill Companies, Inc. All rights reserved.Computing Essentials 2013 5-25  Security Center  Continually monitors your computer  VirusScan  Controls the frequency of searches for viruses  Quarantines or deletes infected files  PersonalFirewall  Monitors inbound and outbound traffic  SiteAdvisor  Protects privacy online

26. System Software © 2013 The McGraw-Hill Companies, Inc. All rights reserved.Computing Essentials 2013 5-26  Computer support specialist provide technical support to customers and other users  Resolve common networking problems and use troubleshooting programs to diagnose problems  Employers look for a bachelors degree, good analytical and communication skills  Computer support specialist can expect to earn $32K - $53K annually

27. System Software © 2013 The McGraw-Hill Companies, Inc. All rights reserved.Computing Essentials 2013 5-27  IBM’s Automatic Computing Initiative (ACI)  Handles time-consuming maintenance  Self-regulating and virtually invisible  Self-maintaining servers  Self-repairing  Self-updating  Self-protecting

28. System Software © 2013 The McGraw-Hill Companies, Inc. All rights reserved.Computing Essentials 2013 5-28  Describe system software. Discuss each of the four types of system programs.  Define operating systems. Describe the basic features and the three categories of operating systems.  What are desktop operating systems? Compare Windows, Mac OS, Linux and Chrome OS. Discuss virtualization.

29. System Software © 2013 The McGraw-Hill Companies, Inc. All rights reserved.Computing Essentials 2013 5-29  What are mobile operating systems? Describe six leading mobile operating systems.  Discuss utilities. What are the five most essential utilities? What is a utility suite?  Explain the role of device drivers. Discuss the Add a Device Wizard and Windows Update.