PC Operating SystemsMicrosoft Windows is the most popularInstalled more than other OS combinedInstalled on about 95% of computersApple and Linux represent the other 5%

Teaching tipWww.w3schools.com/browsers/browsers_stats.asp provides a neutral look at OS statistics. Refer to this page as you lecture. Visit www.wordiq.com/definition/Microsoft_Windows for an excellent timeline and description of Windows operating systems.

PC Operating SystemsDOSDisk Operating SystemSingle user single-tasking OSCommand line interface16-bit OSPowerfulFastSupports legacy applications

Teaching tipStudents often fail to see the value in older OS or applications. As an example, a metal fabrication plant in Pittsburgh PA is still using a program written in the early 70s that calculates metal temperatures.

DOS Application

PC Operating SystemsWindows NTDesigned for a powerful system32-bit OSVery stableWindows NT WorkstationSingle user multi tasking OSWindows NT ServerMulti user multi tasking OSNetwork operating system

PC Operating SystemsWindows 9x95, 98, and Millennium Edition (Me)32-bit OSSupported 16-bit programs wellVery pretty not stable OSStill found in large corporations95 introduced the Start button98 introduced active desktopMe improved multimedia software

PC Operating SystemsWindows 2000Look of 9x with NT stabilityOptimized for office and developersApplication software ran very wellEntertainment software ran very poorly

Discussion pointThere are many computer professionals that say that Windows 2000 was the first stable Microsoft product. Engage your class in a discussion regarding a software developers obligation to create stable products.

PC Operating SystemsWindows XPMicrosofts newest desktop productDifferent look from 2000Many different versionsDigital multimedia support was enhancedCommunications was enhancedMobile computing became a priority

Teaching tipAt press time, the 64 bit version of XP was still in the late beta stage. More information can be found at www.microsoft.com/presspass/press/2003/sep03/09-23athlon64betapr.asp.

PC Operating SystemsUNIXRuns on all computer types32- or 64-bitVery stable and fastCommand-line interfaceCan cost thousands of dollars

PC Operating SystemsLinuxFree or inexpensive version of UNIX32-bit OSVery stable and fastMost flavors are open sourceX Windows GUICommand line interface is available

Linux Desktop

PC Operating SystemsMacintosh operating systemsOS XBased on FreeBSD LinuxVery stable and easy to configureOnly runs on Mac hardware

Teaching tipOS X versions change often. Keep track of the most current and present this to the class. Visit www.apple.com/macosx/ to keep up to date. At press time the latest version was 10.4 Tiger.

OS X Desktop

NOS FeaturesNetwork operating systemFast and stableRuns on serversMulti-user and multitasking OS32- or 64-bit

NOS FeaturesFile and print sharingUsers access the same filesHundreds of users use a printerDifferent OS can interact

NOS FeaturesData integrityBackups copies data onto tapeRAID copies data onto other drivesRedundant Array of Inexpensive DisksRelies on two or more hard drivesMay speed access to data

NOS FeaturesData securityAccess to data can be restrictedAccess to server resources is controlledAudits can be kept

Teaching tipTell your students what NOS your school uses.

Networking Operating SystemsNT ServerSame core as NT WorkstationSecurity addedMulti user capability addedRAID support included

Networking Operating SystemsWindows 2000 ServerSame technology as 2000 workstationActive Directory (AD)Central database of server resourcesSimplifies network managementDistributed programs supportedServer Standard EditionAdvanced Server EditionData Center Edition

Teaching tipSpend some time describing how distributed applications can reduce network needs.

Networking Operating SystemsWindows 2003 ServerDesigned to compete with UNIXXP like interfaceBetter support for XP computersMS .NET framework supportedDistributed programs are supportedServer Standard EditionData Center Edition

Networking Operating SystemsUNIX for serversOldest NOS in widespread useStable secure and fastMain OS for Internet and WebLarge organizations depend on UNIX

Networking Operating SystemsLinux for serversPopular in small businessesStable, fast and inexpensiveLinuxs popularity is growing

Insider informationThe email service hotmail was originally hosted on Linux servers. Microsoft purchased Hotmail and moved it to Windows servers. It took Microsoft nearly a year to make Hotmail work as well on Windows as it did on Linux.

Embedded Operating SystemsDevices have EOS built inCell phones, PDAs, medical equipmentStable and fast

Embedded Operating SystemsWindows XP embeddedBased on Windows XPCustomized for each device

Embedded Operating SystemsWindows CENot based on a desktop OSCustomized for each devicePDA and cell phonesMicrosoft Automotive will run in cars

Teaching tipHave a little fun with this one. Windows CE has the unfortunate and unofficial shortcut name of WinCE.

Embedded Operating SystemsPalm OSStandard on Palm PDAFirst PDA OS for consumersCan be found on cell phones

Embedded Operating SystemsPocket PCDeveloped to compete with PalmNot customizable Interacts securely with business networksCan control PCs through PC

Embedded Operating SystemsSymbianFound in smart cell phonesGames, Instant Messaging, InternetFull color display

Copyright 2006 by The McGraw-Hill Companies, Inc. All rights reserved.McGraw-Hill Technology Education

Chapter 7BEnd of Chapter

Teaching tipWww.w3schools.com/browsers/browsers_stats.asp provides a neutral look at OS statistics. Refer to this page as you lecture. Visit www.wordiq.com/definition/Microsoft_Windows for an excellent timeline and description of Windows operating systems. Teaching tipStudents often fail to see the value in older OS or applications. As an example, a metal fabrication plant in Pittsburgh PA is still using a program written in the early 70s that calculates metal temperatures.Discussion pointThere are many computer professionals that say that Windows 2000 was the first stable Microsoft product. Engage your class in a discussion regarding a software developers obligation to create stable products. Teaching tipAt press time, the 64 bit version of XP was still in the late beta stage. More information can be found at www.microsoft.com/presspass/press/2003/sep03/09-23athlon64betapr.asp.Teaching tipOS X versions change often. Keep track of the most current and present this to the class. Visit www.apple.com/macosx/ to keep up to date. At press time the latest version was 10.4 Tiger.Teaching tipTell your students what NOS your school uses.Teaching tipSpend some time describing how distributed applications can reduce network needs.Insider informationThe email service hotmail was originally hosted on Linux servers. Microsoft purchased Hotmail and moved it to Windows servers. It took Microsoft nearly a year to make Hotmail work as well on Windows as it did on Linux. Teaching tipHave a little fun with this one. Windows CE has the unfortunate and unofficial shortcut name of WinCE.