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30/05/02 Document Systems Support V1.0
33
ETHERNET:
This is the most widely used form of LAN transmission. (IEEE 802.3
standard). It is based on a BUS TOPOLOGY and runs over twisted pair, co-
ax or fibre-optics.
There are a number of variants to ETHERNET, common ones are:
nn BASE x
, where
nn
is the speed, in, Mbits/s and
x
is the medium used e.g.
T
for Un-Shielded twisted pair or
F
for Fibre-Optic etc. Therefore,
100 BASE
F
network would indicate a
100Mbits/s
transimission using
Fibre-Optic
cable.
See
TABLE 2
FIBRE-OPTICS:
A medium to transmit encoded digital data as pulses of light.
FILE SERVER:
A computer connected to a network, which runs the operating system and
contains the shared files that are to be accessed by members of the
network.
FRONT END:
This term was originally used to define the 'client' part of a 'client-server'
application, that requests service from the 'server' or 'BACK END'. Now, it
is more often used to describe the user interface of an application or
service.
GATEWAY:
An interface between two networks or systems.
GUI: (Graphical User Interface)
GDI: (Graphic Display Interface)
This is a term for the display of information on the users screen that gives
access to operating systems such as windows.
HOST:
An intelligent device connected to a network.