ITPEC IP October 2022 Question 20

Topic: SoftwareAlso asked in October 2020

Which of the following is an appropriate combination of software that includes only OSS (Open Source Software)?

Explanation

Firefox, Linux, Thunderbird — all three are open source; every other option includes a Microsoft product.

OSS is software whose source code is published under a licence that lets anyone use, modify and redistribute it.

  • •Firefox — web browser from the Mozilla project (Mozilla Public License)
  • •Thunderbird — e-mail client, also from Mozilla
  • •Linux — OS kernel (GNU GPL)
  • •PostgreSQL — relational DBMS, also OSS
  • •Microsoft Word and Windows — proprietary: Microsoft keeps the source code closed and sells licences to use them

Answer (c)

Why not others:

  • •(a) — Linux and PostgreSQL are OSS, but Microsoft Word is proprietary
  • •(b) — PostgreSQL is OSS, but Word and Windows are both proprietary
  • •(d) — Firefox and Thunderbird are OSS, but Windows is proprietary

Key rule: Free of charge does not make software OSS; what counts is that the source is available and may be modified and redistributed.

Software · AI-written, may contain errors

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