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This page is part of the old A451 specification - current syllabus here

1. Introduction

Specification point:

iv) Explain the difference between custom written and off-the-shelf software


Software applications work through the operating system to gain access to the hardware.of the shelf software

A software application carries out tasks that the user is interested in doing such as writing a letter, creating graphs, sending an email or downloading a webpage.

Application software can be classified under two main categories:

  • Off-the-shelf software
  • Custom written or bespoke software