A-level Computing/AQA/Computer Components, The Stored Program Concept and the Internet/Fundamentals of Computer Systems/Application software

System software Generations of programming language General purpose application software General purpose application software (GPS) is a kind of application that can be used for a variety of tasks. It is not limited to one particular function. They provide a large number of features for its users. For example, a word processor could be classed as general purpose software as it would allow a user to write a novel, create a restaurant menu or even make a poster. thumb|center|Impress presentation software in LibreOffice 5.2 Examples of General purpose application software include: Word processors, Spreadsheet and Presentation software. Whatever you do, do not use brand names! Special purpose application software Special purpose application software (SPS) is a type of software created to execute one specific task. For example, a camera application on your phone will only allow you to take and share pictures. Another example would be a chess game, it would only allow you to play chess. thumb|center|Chromium web browser Other examples of special purpose application software are web browsers, calculators, media players, calendar programs etc. Again, make sure that you don't use brand names! Bespoke application software Bespoke application software (BPS) is tailor made for a specific user and purpose. For example a factory may require software to run a robot to make cars, however, it is the only factory making that car in the world, so the software required would have to be specially built for the task. Other examples might include software for the military, missile/UAV operations, software for hospitals and medical equipment, software being written inside banks and other financial institutions. There are several things to consider before purchasing bespoke software, on the plus side: Software is built for and will meet your precise needs However, you must also consider Software will be expensive as you have to cover all of the production costs It may take some time to develop the software, when special purpose software could be brought straight away The software is more likely to be buggy as it probably won't have thousands of clients using and testing it Exercise: Application Software List and describe the three types of application software: General purpose software - software that can be used for multiple purposes Special purpose software - software built for a specific purpose Bespoke application software - software built for a specific user and purpose Give an example of each: (Don't let the examiner catch you using product names!) General purpose software - word processor / presentation software / spreadsheet Special purpose software - Web browser / media players / calender programs Bespoke application software - car robot control software / military control software Why might you choose to use general purpose software instead of bespoke software, why might it not be suitable? general purpose software is: cheaper than bespoke readily available, whilst bespoke may take some time to write able to perform multiple tasks probably less buggy However, it might not perform all the tasks needed by the user