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Glossary of Internet and Computer Terms


Below, you will find a comprehensive glossary of Internet and Computer terms with definitions that are helpful and easy to understand. To find a term, click the letter of which the word begins with and scroll alphabetically to find your term. For example, to find the definition for the word "Media", click the letter "M", then scroll the list alphabetically until you find "Media".




  • Gateway:
    As in Common Gateway Interface (CGI). It is a piece of software that allows two items to communicate with each other. They are used to make connections between computers and systems inside that computer.

  • General Protection Fault:
    GPF, short for General Protection Fault, is a computer condition that causes a Windows application to crash. The most common cause of a GPF is two applications trying to use the same block of memory, or more specifically, one application trying to use memory assigned to another application. 

    The following situations can also cause GPFs: 

    Running an application with insufficient resources
    Using improper hardware device drivers
    Corrupted or missing Windows files
    Applications exchanging data that cannot be read
    GPFs are often preceded by an invalid page fault. 

  • GIF: 
    Pronounced "jif." Stands for Graphical Interchange Format. It is an image format created by Compuserve.

  • Gigabyte:
    2 to the 30th power (1,073,741,824) bytes. One gigabyte is equal to 1,024 megabytes. Gigabyte is often abbreviated as G or GB.

  • GIGO: 
    It's an acronym that stands for Garbage In, Garbage Out.

  • Glyph:
    A graphic symbol whose appearance conveys information; for example, the vertical and horizontal arrows on cursor keys that indicate the directions in which they control cursor movement. 

  • Gopher: 
    A method of distributing information by computers that has waned in popularity to ftp. Most gopher files contain only text information with few images, audio, or video components. Files can be downloaded with a similar protocol like ftp.

  • GUI - Graphical User Interface:
    A program interface that takes advantage of the computer's graphics capabilities to make the program easier to use. Well-designed graphical user interfaces can free the user from learning complex command languages. On the other hand, many users find that they work more effectively with a command-driven interface, especially if they already know the command language.  

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