• W. Buchanan


An operating system allows application programs to access the hardware of computer. A user interface allows a user to access application programs in an easy-to-use way. In a text-based system the user enters text commands which are then interpreted by the operating system. Typical commands are to run application programs, copy files and so on. With a graphical interface, applications programs are represented by graphical objects (icons) and options are selected using menus. Rather than entering commands from the keyboard a mouse pointer is normally used to select objects. This usage of Windows, Icons, Menus and Pointers (WIMPs) is typically known as a Graphical User Interface (GUI).


Graphical User Interface Application Program Graphical Object File Server Client Program 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Chapman & Hall 1996

Authors and Affiliations

  • W. Buchanan
    • 1
  1. 1.Department of EECENapier UniversityEdinburghUK

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