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UTP
- Unshielded twisted pair is the most common kind of copper telephone
wiring. Twisted pair is the ordinary copper wire that connects home and many
business computers to the telephone company. To reduce crosstalk or electro-
magnetic induction between pairs of wires, two insulated copper wires are
twisted around each other. Each signal on twisted pair requires both wires.
Since some telephone sets or desktop locations require multiple connections,
twisted pair is sometimes installed in two or more pairs, all within a single
cable.
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Router
- Protocol-dependent device that connects subnetworks together.
Routers are useful in breaking down a very large network into smaller subnet-
works; they introduce longer delays and typically have much lower throughput
rates than bridges.
Server
- Any computer whose function in a network is to provide user access
to files, printing, communications, and other services.
Software
- Instructions for the computer. A series of instructions that performs
a particular task is called a "program." The two major categories of software are
"system software" and "application software." System software is made up of
control programs such as the operating system and database management sys-
tem (DBMS). Application software is any program that processes data for the
user.
A common misconception is that software is data. It is not. Software tells the
hardware how to process the data.
STP
(
S
hielded
T
wisted
P
air) - Telephone wire that is wrapped in a metal
sheath to eliminate external interference.
Switch
- 1. A data switch connects computing devices to host computers,
allowing a large number of devices to share a limited number of ports. 2. A
device for making, breaking, or changing the connections in an electrical cir-
cuit.
Throughput
- The amount of data moved successfully from one place to anoth-
er in a given time period.
Topology
- A network's topology is a logical characterization of how the
devices on the network are connected and the distances between them. The
most common network devices include hubs, switches, routers, and gateways.
Most large networks contain several levels of interconnection, the most impor-
tant of which include edge connections, backbone connections, and wide-area
connections.
TX Rate
- Transmission Rate.
Upgrade
- To replace existing software or firmware with a newer version.
Upload
- To transmit a file over a network. In a communications session,
upload means transmit, download means receive.
16
EtherFast
®
16-Port and 24-Port 10/100 Ethernet Switches
Instant EtherFast
®
Series