Computers © 2005 Prentice-Hall, Inc.Slide 1

Computers Software © 2005 Prentice-Hall, Inc.Slide 2

Computers Software Objectives Operating system purposes Windows concepts Software suite applications There are many applications for personal computers Graphics and multimedia © 2005 Prentice-Hall, Inc.Slide 3

Computers Software System Software Operating System – controls the computer Utility Programs – computer maintenance Graphical User Interface (GUI) Kernel – loaded into memory at start-up and remains there until the computer is shut down © 2005 Prentice-Hall, Inc.Slide 4

Computers Software Operating System Functions Allocating system resources Multitasking – more than one program running at a time Foreground – program that is active is run here Background – programs of lower priority are run here © 2005 Prentice-Hall, Inc.Slide 5

Computers Software User Interface Graphical User Interface Pointing device such as a mouse Icon – picture that represents a file or a computer task © 2005 Prentice-Hall, Inc.Slide 6

Computers Software PC Operating Systems and Platforms PC/Windows Platform (Wintel) Older versions of Windows Windows 95/98 Windows ME Modern PC Operating Systems Windows XP – plug and play Windows 2005 Server Windows CE.NET © 2005 Prentice-Hall, Inc.Slide 7

Computers Software Other Computer Platforms The Macintosh/Mac Platform Unix – multiuser operating system Linux – open source version of Unix Open source – source code is available LindowsOS – Linux based, Windows compatible © 2005 Prentice-Hall, Inc.Slide 8

Computers Software Business Concerns for Choosing an OS Interoperability – ability to share resources across platforms Multiplatform environment.NET Platform – provides users with personal/corporate data from any linked device © 2005 Prentice-Hall, Inc.Slide 9

Computers Software Utility Programs Disk and file maintenance System recovery Security Backup Virus protection © 2005 Prentice-Hall, Inc.Slide 10

Computers Software Windows Concepts and Terminology Window – rectangular area on the screen Desktop – where Windows icons are displayed Application window Active window Open application © 2005 Prentice-Hall, Inc.Slide 11

Computers Software Windows Concepts and Terminology Workspace Document window Scrolling Cascading windows Tiled windows © 2005 Prentice-Hall, Inc.Slide 12

Computers Software Windows Concepts and Terminology Menus – lists of user choices Pull-down menus Shortcut keys Toolbars – contain buttons for frequently used commands Dialog box – allows the user to provide information to the software © 2005 Prentice-Hall, Inc.Slide 13

Computers Software Windows Concepts and Terminology Sharing Information Clipboard – area where information is stored, can then be shared with other applications © 2005 Prentice-Hall, Inc.Slide 14

Computers Software Working with Files File –information saved in an electronic format File types: ASCII – text only Data Document – word processor file Spreadsheet © 2005 Prentice-Hall, Inc.Slide 15

Computers Software Working with Files File types: Web page Source program – user-created instructions to the computer Executable – machine language version Graphics Audio Video © 2005 Prentice-Hall, Inc.Slide 16

Computers Software Working with Files A file’s optional 3 character extension indicates the type of file Native file format – default data type for a particular program © 2005 Prentice-Hall, Inc.Slide 17

Computers Software Working with Files What can be done to a file? Create, name, save Copy, move, delete Retrieve, update Display, print, play Execute Download/upload © 2005 Prentice-Hall, Inc.Slide 18

Computers Software Working with Files What can be done to a file? Import – open a file with a program that was NOT used to create the file Compress – reduce the size of a file so it can be uploaded more quickly Zip file – the reduced file. It must be unzipped before it can be used. © 2005 Prentice-Hall, Inc.Slide 19

Computers Software File Management Windows Explorer – file management tool Folders – used to organize a storage device such as a hard disk or diskette Path – indicates what folder a file is stored in © 2005 Prentice-Hall, Inc.Slide 20

Computers Software File Management Activities Save/Save As Open Copy Cut Delete Rename © 2005 Prentice-Hall, Inc.Slide 21

Computers Software Help Help for Windows – online Help for application software – click on the Help option or menu Context-sensitive help – hit F1 to get help concerning whatever you are doing © 2005 Prentice-Hall, Inc.Slide 22

Computers Software Productivity Software: The Software Suite Template – pre-formatted document; user simply provides content © 2005 Prentice-Hall, Inc.Slide 23

Computers Software Productivity Software: The Software Suite Word processing Spell checker Online thesaurus Grammar and style checker © 2005 Prentice-Hall, Inc.Slide 24

Computers Software Productivity Software: The Software Suite Presentation software Text Photos/images Charts and graphs Original drawings © 2005 Prentice-Hall, Inc.Slide 25

Computers Software Productivity Software: The Software Suite Presentation software Clip art Audio clips Full-motion video Online thesaurus Grammar and style checker © 2005 Prentice-Hall, Inc.Slide 26

Computers Software Productivity Software: The Software Suite Spreadsheet software Rows and columns Cell – intersection of a row and a column Cell address – column and row the cell appears in © 2005 Prentice-Hall, Inc.Slide 27

Computers Software Productivity Software: The Software Suite Database software Create and maintain a database Extract information Make inquiries Sort records Generate reports © 2005 Prentice-Hall, Inc.Slide 28

Computers Software Productivity Software: The Software Suite Personal Information Management (PIM) software Messages Appointments Contacts Tasks © 2005 Prentice-Hall, Inc.Slide 29

Computers Software PC Software Shareware – author counts on the honor system for payment; copyrighted Freeware – may be used free of charge; copyrighted Public-domain software – may be used without restriction; not copyrighted © 2005 Prentice-Hall, Inc.Slide 30

Computers Software PC Software Home and family software Legal advisors Hobbies Education and edutainment software Reference software Business and financial software © 2005 Prentice-Hall, Inc.Slide 31

Computers Software Graphics Software and Multimedia Multimedia – use of text, pictures, animation, and sound to present an idea © 2005 Prentice-Hall, Inc.Slide 32

Computers Software Graphics Software and Multimedia Graphics software – allows the user to create pictures on a computer Bit-mapped image – picture is made up of dots Pixels – picture elements (dots) Raster graphic– another name for bit-mapped graphics Vector graphic – image is composed of geometric shapes such as lines and points Metafile format – combines bit-mapped and vector graphics © 2005 Prentice-Hall, Inc.Slide 33

Computers Software Graphics Software and Multimedia File formats JPEG – web pages and digital photography BMP – Microsoft Windows GIF – web pages and downloadable images TIFF – used in print publishing PCX – PC Paintbrush PNG – replacement for GIF © 2005 Prentice-Hall, Inc.Slide 34

Computers Software Graphics Software and Multimedia Paint software – creation of bit-mapped images Draw software – creation of vector images Photo illustration software – creation and editing of existing digitized images Morphing – changing one image to another © 2005 Prentice-Hall, Inc.Slide 35

Computers Software Graphics Software and Multimedia Drag-and-drop software – users choose from pre-created shapes Animation software Video editing software © 2005 Prentice-Hall, Inc.Slide 36

Computers Software Multimedia Digital camera Video camera, VCR, audio cassette player, CD player, television CD-RW or DVD+RW Synthesizer Video capture card Color scanner © 2005 Prentice-Hall, Inc.Slide 37

Computers Software Multimedia Sound files MP3 Wave files – waveform MIDI files – nonwaveform files created using musical instruments Image files User created Clip art Scanned images Photo images © 2005 Prentice-Hall, Inc.Slide 38

Computers Software Multimedia Motion video files User needs to create motion video files: Video camera Video capture board © 2005 Prentice-Hall, Inc.Slide 39

Computers Software Creating a Multimedia Application Presentation software Authoring software Used for creating multimedia applications Multimedia programming May require high-end multimedia programs May require programming skills © 2005 Prentice-Hall, Inc.Slide 40

Computers Software Chapter 2 – Lesson Summary Operating system purposes Windows concepts Software suite applications There are many applications for personal computers Graphics and Multimedia © 2005 Prentice-Hall, Inc.Slide 42