What do we know? - 2 of 2



Every computer needs both an Operating Systems, and Applications software to be functional. The most common PC Operating System is Microsoft Windows, although Apple Mac's have their own Operating System.

An Operating System on its own is insufficient, whether the computer is used for Business or Pleasure, Applications are needed, and some common ones are shown opposite.

A mainframe will also have a range of Applications, but these will be completely different, as a mainframe is not a suitable environment for most PC Applications.

More of what we know?



  1. To be able to use the PC or Laptop an Operating System is needed

    • Microsoft Windows is common
    • macOS


  2. To be productive applications are needed, either for Business or Pleasure

    • Word Processing - (MS Word, Libre Office Writer)
    • WEB Browser - (Microsoft Edge, Mozilla Firefox, Google Chrome)
    • Spreadsheets - (Microsoft Excel, Libre Office Calc)

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