List three of the major categories of application software and briefly explain their functions. Word Processing makes writing easier. Spreadsheets manage budgets and do financial projections.
Database manages and manipulates a collection of data.
Application programs are used to create and manipulate data. Typically application programs help the user solve a problem, e.g., automate payroll, draw a picture, write a letter. Explain the purpose and function of the operating system when working with program files and data files. It is not possible to run an application program without first loading the OS as the OS is responsible for all maintenance and operation of files. Also, since application programs are stored as files on disk and usually generate data files, OS commands allow you to manage and manipulate program and data files.