Explain what is meant by the following, giving an example of each terms: off-the-sheſf software, custom- written software. Give three advantages and one disadvantage of using off-the-shelf software...

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Extracted text: Explain what is meant by the following, giving an example of each terms: off-the-sheſf software, custom- written software. Give three advantages and one disadvantage of using off-the-shelf software rather than custom software.