PCTV Systems DistanTV
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E
Ethernet:
The most common type of local-area network. Each node (computer
or server) in the network checks whether any other computer is transmitting
data. It then waits for the other computers to finish with their transmissions
before it starts its own transmission. (see also "LAN")
I
IP Address:
Abbreviation for "Internet Protocol". Every computer connected to
the Internet receives a unique identification number that consists of four
sections. This number is called an IP address. This allows other computers in the
network to identify it, send data packets to it and to process data they have
received from it. IP addresses make sure that the right data packets are sent to
the right recipient via the right path.
L
LAN:
Abbreviation for "Local Area Network". A local network located in a
building or on company premises that is based on private transmission media
and equipment. Ethernet and Token Ring are common LAN technologies.
N
Network protocol:
A network protocol, also known as a communications
protocol or protocol for short, is an exact agreement used for exchanging data
between computers and/or processes that are connected to each other on a
network. A protocol consists of rules and formats that define how
communication functions on the computers on the network.
P
Port:
The end point of a logical connection within a network. The port number
indicates the type or the type of use of the port. Certain port numbers are
reserved for specific applications. For example, port 80 is used for http
communication.
R
Router:
Routers, also known as "Intermediate Systems (IS)", are linking
elements that interconnect two or more subnetworks. In addition to acting as a
bridge, routers can expand the boundaries of a network (number of nodes,
physical extension). Routers also control data traffic by not forwarding defective
data packets.
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