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Glossary
of Terms
Full Text Search The ability to search text files for occurrences of certain words,
digits, sentences or patterns of characters.
Fuser The part of the printing system that forces the toner to adhere to the paper.
There are several types of fusing systems heat, chemical and pressure.
G
Gamma A measure of contrast in photographic images.
Gateway Network interconnection device and software that operate at OSI Layer
Seven. A gateway supports a full stack of the relevant protocol, such as SNA, DecNet,
ISO, TCP/IP, and can covert to a non-seven layer protocol, such as async or BSC. It
is typically used to provide access to wide area networks over asynchronous or X.25
links from a LAN environment. Examples include pads and protocol converters.
GDI (Graphical Device Interpreter) PC compatible printers equipped with drivers
that allow it to print from a Windows operating system. Printing with this method
uses the computers controller and processor to prepare and send the data to the
printer in a form it needs to print it, thus skipping the process of converting the data
into a PDL or PCL format. Note that DOS operating system does not offer this
ability, as it cannot serve as an imaging processor.
GFI (Group Format Identifier) (X.25 reference) the first four bits in a packet header,
GFl contains the obit, Dbit and modulus value.
GGP (Gateway-to-Gateway Protocol) The protocol that core gateways use to
exchange routing information, GGP implements a distributed shortest path routing
computation.
Gigabyte (GB) 1,024 megabytes of digital data.
GUI (Graphical User Interface) Often pronounced “goo-ee”, it describes the screen
display that first greets a user and with which the user interacts during the computer
session. A GUI makes use of Windows, Icons, Menus and Pointers - so-called WIMP
systems - such as Microsoft Windows, GEM and X-Windows. Apple’s GUI is
particularly.