System Software Part-1

• Device dependent

• Device independent

• Proprietary software

• Downward compatible

• Upward compatible

• Embedded OS

• Network OS

• Stand-alone OS

• Virus

• Anti-virus program

• Personal firewall

• File compression

• PC maintenance

• What are some characteristics of operating systems?

• What are three categories of operating systems?

• What is DOS (Disk Operating System)?

• How do Windows versions compare?

• What is Windows XP?

• Microsoft’s fastest, most reliable Windows operating system

• Available in five editions:

• Home Edition

• Professional Edition

• Tablet PC Edition

• Media Centre Edition

• 64-bit Edition

• What are some features of Windows XP?

• What is Mac OS X?

• Available only for computers manufactured by Apple

• Macintosh operating system has been model for most GUIs

• What is UNIX?

• Used by power users because of its flexibility and power

• Most versions offer GUI

• Both a stand-alone and a network operating system

• What is Linux?

• Popular, free, multitasking UNIX-type operating system

• Open-source software - code is available to public

• Both a stand-alone and a network operating system

• What are examples of network operating systems?

• What is an embedded operating system?

• Found on most mobile computers, PDAs and other small devices

• Windows CE.NET is scaled-down version of Windows

• What are two operating systems for PDAs?

• Windows Mobile 2003 for Pocket PC

• Palm OS for Palm, Visor and CLIE

• What is Symbian OS?

• Open-source, multitasking operating system designed for smart phones

• Make telephone calls, save appointments, browse Web, send and receive e-mail and faxes, and etc

• What is a virus?

• Potentially damaging computer program

• Affects computer without user’s knowledge

• What is an anti-virus program?

• Identifies and removes viruses in memory, storage media and incoming files

• Must be updated frequently

• What is a personal firewall?

• Protects personal computer from unauthorized intrusions

• Monitors all transmissions to and from computer

• What is a file compression utility?

• Shrinks size of files to free up room and improve performance

• Compressed files are sometimes called zipped files

• Two popular utilities : PKZIP and WinZip

• What is a personal computer maintenance utility?

• Identifies and fixes operating system problems and disk problems

• Some continuously monitor computer to identify problems before they occur