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Week7 software (os, ap)
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- 2. Introduction Computer software givesinstructions that make computer hardware work. In other words, software is a collection of computer programs and related data that provide the instructions for telling a computer what to do and how to do it. The four main types of software are operating systems, application programs, utility programs, and programming languages.
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- 4. Operating Systems An operatingsystem is a piece of software that controls how hardware resources such as memory, the central processing unit (CPU), disk space, and other devices are used. All other kinds of software (application, utility, and programming) need the operating system because of hardware resources.
- 5. Operating Systems An operating system has two parts, a kernel, and a shell. The kernel is the core of an operating system. It manages memory, files, and other devices; maintains the time and date; starts applications; and manages system resources. The shell provides direct communication interface between the user and the kernel.
- 6. Operating Systems There aremany different types of operating system. They are classified systems according to the type of user interface, how many users they support (single-user or multi-user), how they perform tasks (single task or multitask), and how they work with other computers (single computer or network).
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- 9. Single or Multi-User Asingle-user operating system can be used only by a single user. A multiuser operating system can be used by more than one user. In some ways, a computer that several people share is like a multi-user system. However, a real multi-user system means a machine (and operating system) that several people can access at the same time, through communication facilities or network terminals. Server computers are multi-user systems whereas, PC’s or workstations are single-user systems.
- 10. Stand Alone orNetwork A network operating system is an operating system specifically designed to support computer networks. A computer network is a set of computers that can communicate with each other and share resources. A network operating system uses a special machine called a server to provide networking support for multiple simultaneous users as well as administrative, security, and management functions. Unlike a single-user operating system, a network operating system must respond to requests from many computers, managing network access and communications, resource use and sharing, data protection, and error control.
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- 12. Operating Systems MS-DOS Windows 98 WindowsXP Windows Vista Windows 7
- 13. Operating Systems Mac OS Unix Linux NovellNetWare BeOS and Haiku
- 14. Mobile Operating Systems SymbianOS Google Android Mobile Linux BlackBerry OS iOS
- 15. OS Statistics –April 2012
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- 17. Application Programs An applicationprogram is a program designed to help with a specific task, such as word processing, accounting, counting the items in a shop or warehouse, or maintaining a database. Application software makes a computer work to suit your needs.
- 18. Word Processor Microsoft Word,Corel WordPerfect, StarWriter, Windows WordPad, MacWrite, and WordStar
- 19. Spreadsheet Microsoft Excel, Lotus1-2-3, StarCalc, and Gnumeric
- 20. Presentation Software Microsoft PowerPoint,Lotus Freelance Graphics, Adobe Persuasion, OpenOffice.org Impress, Apple’s Keynote, and Corel Presentations
- 21. Database Management Software dBase,Paradox, Microsoft Access, FoxPro, Oracle, SQL Server, MySQL, InterBase, and Sybase
- 22. CAD/CAM AutoCAD, ArchiCAD, MathCAD,and Electronic WorkBench
- 23. Painting and Drawing WindowsPaint, Corel Painter, and Adobe Photoshop CS4 CorelDRAW and Adobe Illustrator
- 24. Page Layout andDesktop Publishing Quark XPress, Adobe InDesign, Microsoft Publisher and Adobe Page Maker.
- 25. Animation Programs Adobe FlashCS5, Microsoft Silver Line, 3D Studio MAX, Animation FX, 3D Maya, and Xara.
- 26. Multimedia Applications Microsoft MediaPlayer, Microsoft Media Center, Media Player Classic, Real Player, Quicktime Player, WinAmp, WinDVD, and PowerDVD
- 27. Games Chess Master, AgeOf Empires, SimCity, Fifa, Fifa Manager, Crysis Warhead, NFS Shift, and Counter Strike
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- 29. Online Applications www.docs.google.com, www.acrobat.com,office.live.com, and www.zoho.com
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