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What is Computer Software?

What is Computer Software?. Hardware vs Software. Got to have both to get the job done!. How does Software Work?. Computer Algorithms Step by step directions telling computer what to do Software development First programmer – Grace Hopper – created FLOW MATIC (later known as – COBOL )

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What is Computer Software?

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  1. What is Computer Software?

  2. Hardware vs Software Got to have both to get the job done!

  3. How does Software Work? • Computer Algorithms • Step by step directions telling computer what to do • Software development • First programmer – Grace Hopper – created FLOW MATIC (later known as – COBOL) • Programming language that was close to English

  4. Applications Software • Programs designed to make users more productive • Assist with personal tasks to make you more productive • Variety of uses: • Business • Graphics and Multimedia • Home/Personal/ Educational • Communications

  5. Systems Software • Interface between the user, the application software, and the computer’s hardware • Examples: • Operating Systems • Utilities (diagnostics, servers) • Language Translators

  6. Operating Systems • Helps user communicate with computer • Uses a desktop to provide on-screen work area (graphical user interface) • Windows • Linux • Mac-OS • DOS • Networking Operating System • Two or more computers to be connected

  7. Graphical User interfaces • Came about with menus • Graphical user interface (GUI) • Apple’s development of Macintosh Finder • Pictures (icons) represent software • Colorful • Reason for explosion of computer use (after DOS scared people)

  8. Operating System (Windows, Vista, Windows 7) Example of a Graphical User Interface

  9. Utility Software • Helps perform housekeeping chores • Tasks include: • Antivirus programs • Copy file from hard drive to another location • Convert graphics file to be used in another program • Backup copy of hard drive (image, ghost) • CD/DVD Burning

  10. Language Translators • Convert English code, to computer instructions • Helps computer process data I don’t understand! I need a translator.

  11. User Interfaces • What you see, touch, click • Part we interact with when using the computer • “User friendly” • Command-line interface such as DOS(not used frequently) • Graphical interfaces such as Windows

  12. Command Line (DOS) • Early computers used only this • Have to memorize codes • Not very user friendly • Not colorful – usually written in black and white • No pictures

  13. DOS • Command line operating system • Memorize commands

  14. Assignment • Computer Specs That Matter

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