Emerson Dixell X-web300 Operation Manual page 107

C
Cable - Transmission medium of copper wire or optical fiber wrapped in a protective cover.
Client/Server - A networking system in which one or more file servers (Server) provide services; such as
network management, application and centralized data storage for workstations (Clients).
CSMA/CD - Carrier Sense Multiple Access Collision Detection is a network access method in which devices
that are ready to transmit data first check the channel for a carrier. If no carrier is sensed, a device can
transmit. If two devices transmit at once, a collision occurs and each computer backs off and waits a random
amount of time before attempting to retransmit. This is the access method used by Ethernet.
Coaxial Cable - Cable consisting of a single copper conductor in the center surrounded by a plastic layer for
insulation and a braided metal outer shield.
Concentrator - A device that provides a central connection point for cables from workstations, servers, and
peripherals. Most concentrators contain the ability to amplify the electrical signal they receive.
E
E-mail - An electronic mail message sent from a host computer to a remote computer.
End User - Refers to the human executing applications on the workstation.
F
File Server - A computer connected to the network that contains primary files/applications and shares them
as requested with the other computers on the network. If the file server is dedicated for that purpose only, it
is connected to a client/server network. An example of a client/server network is Novell Netware. All the
computers connected to a peer-to-peer network are capable of being the file server. Two examples of peer-
to-peer networks are LANtastic and Windows for Workgroups.
I
ISP (Internet Service Provider) - Company that provide access to internet
M
Modem (Modulator/Demodulator) - Devices that convert digital and analog signals. Modems allow computer
data (digital) to be transmitted over voice-grade telephone lines (analog).
P
PCMCIA - An expansion slot found in many laptop computers.
Point-to-Point - A direct link between two objects in a network.
Ports - A connection point for a cable.
Protocol -A formal description of a set of rules and conventions that govern how devices on a network
exchange information.
R
RAM (Random Access Memory) - The working memory of a computer where data and programs are
temporarily stored. RAM only holds information when the computer is on.
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