Computers: Information Technology in Perspective By Long and Long Copyright 2002 Prentice Hall, Inc. Software Chapter 2.

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Presentation transcript:

Computers: Information Technology in Perspective By Long and Long Copyright 2002 Prentice Hall, Inc. Software Chapter 2

Quit Software Categories SystemSoftware ApplicationSoftware

Quit The Operating System OperatingSystem GUI Operating Systems

Quit Operating System Objectives  Facilitate communication  Maximize throughput  Minimize processing time  Optimize computer resources  Organize files  Provide security  Monitor system/alert user

Quit 10.5 Operating System Features MultitaskingMultitasking ForegroundForeground KernelKernel BackgroundBackground

Quit 10.6 Operating System Interfaces MS-DOSSyntax Text-Based, Command-Driven Software Windows 9x/Me/2000/XP Graphical User Interface (GUI) Icons Graphics-Based Software

Quit 10.7Platforms  90% use Wintel  Backward compatibility  Plug-and-play Platform is defined by the Processor and Operating System Platform is defined by the Processor and Operating System

Quit 10.8 PC-Compatible Platforms  MS-DOS  MS-DOS with Windows  Windows 95 & 98  Windows ME  Windows 2000  Windows XP  Windows CE Registered trademark of Microsoft Corp.

Quit 10.9 Platform Problems Long-term commitment Multiplatform environment Cross-platform technologies InteroperabilityInteroperability

Quit The Window  Menu bar Pull-down Pull-down Pop-up Pop-up Floating Floating Mnemonic Mnemonic Shortcut keys Shortcut keys Hotkey Hotkey  Dialog box  Toolbar & Ruler bar

Quit 10.11Icons  Windows Explorer  Application icons  Shortcut icons  Document icons  Disk-drive icons  Windows Explorer  Application icons  Shortcut icons  Document icons  Disk-drive icons

Quit Viewing Windows  Run in a window vs. full-screen  Cascading & tiled windows  Switching between windows Foreground vs. Background Foreground vs. Background  Terminating session File/Save File/Save Close all windows Close all windows Start button, then shut down Start button, then shut down

Computers: Information Technology in Perspective By Long and Long Copyright 2002 Prentice Hall, Inc. Personal Computing Chapter 10

Quit Software Portfolios  Operating systems Utility software Utility software  Popular application software  Sharing information among applications Monthly Technology Update

Quit PC Operating Systems & Platforms  Multiplatform computer Runs its native platform Runs its native platform Emulates other platforms Emulates other platforms  Consider Availability of software Availability of software Compatibility of platform Compatibility of platform Platform = processor + operating system

Quit PC/Windows Platforms   Windows 9x and Windows Me Bridge gap between Windows & Windows NT/2000 Windows Me mainly for home user   Windows XP: The Best of Windows Me and 2000 Windows XP (client-side) Windows 2000 Server (server-side) Supports LAN-based workgroup computing   Windows CE Handheld and pocket PCs 32-bit programs Registered trademark of Microsoft Corp.

Quit Other Platforms  Macintosh/Mac OS Apple family Apple family Motorola microprocessor Motorola microprocessor Can be adjusted for user’s expertise level Can be adjusted for user’s expertise level  UNIX Multi-user operating system Multi-user operating system  Linux Spin off of UNIX Spin off of UNIX Open source software Open source software Free over Internet Free over Internet Used by web and servers Used by web and servers

Quit Utility Software  Data-to-day chores  Disk and file maintenance  System recovery  Security  Backup  Virus protection

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