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Software. Technology Guide 2. Instructional Objectives. Computer Software System Software Application Software Generations of programming languages Software Issues. Computer Software. Software. Application. Systems. Control. Support. Proprietary. Off-the-shelf. Operating Systems.

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Software

Software

Technology Guide 2


Instructional objectives

Instructional Objectives

  • Computer Software

    • System Software

    • Application Software

  • Generations of programming languages

  • Software Issues


Computer software

Computer Software

Software

Application

Systems

Control

Support

Proprietary

Off-the-shelf


Operating systems

Operating Systems

  • Microsoft Windows

    • Windows XP, Windows Vista, Windows 7

  • Mac OS

  • Linux


Productivity suites

Productivity Suites

  • Microsoft Office

    • Office 2007

    • Office 2010

  • Corel WordPerfect

  • Star Office

  • Lotus Smart Suite

  • Open Office


Generations of languages

1GL

Machine language

Coded at machine level in 0s and 1s

2GL

Assembly language

Replaced 0s and 1s with mnemonics (or memory cards)

3GL

High-level language

Procedural language

COBOL, FORTRAN, C

4GL

Query and database language

Non-procedural language

SQL, SAS, SPSS, APL

5GL

Natural and intelligent language

“intelligent” language

Generations of Languages


Software issues

Software Issues

  • Software defects

  • Software licensing

    • Software Piracy and the Business Software Alliance (BSA)

  • Open Systems (computing products that work together)

  • Open Source Software

    • Source code is free (freeware, shareware)


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