Corinex Global ADSL2+ - Manual (Page 127)

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Appendices
Corinex ADSL2+ Wireless Gateway G
Browser - A browser is an application program that provides a way to look at
and interact with all the information on the World Wide Web or PC. The word
“browser” seems to have originated prior to the Web as a generic term for user
interfaces that let you browse text files online.
Buffer - A storage area used for handling data in transit. Buffers are often used to
compensate for differences in processing speed between network devices.
Byte - The fundamental unit that a computer uses in its operation. It is a group of
adjacent binary digits, usually 8, often used to represent a single character.
Cable Modem - A device that connects a computer to the cable television net-
work, which in turn connects to the Internet. Once connected, cable modem users
have a continuous connection to the Internet. Cable modems feature asymmetric
transfer rates: around 36 Mbps downstream (from the Internet to the computer),
and from 200 Kbps to 2 Mbps upstream (from the computer to the Internet).
Caching – 1. Speeds information processing by storing information from a transac-
tion to use for later transactions. 2. Storing or buffering data in a temporary loca-
tion, so that the information can be retrieved quickly by an application program.
Carrier Sense Multiple Access/Collision Avoidance (CSMA/CA) - A method
of data transfer that is used to prevent data loss in a network.
Carrier Sense Multiple Access/Collision Detection (CSMA/CD) - A channel
access mechanism wherein devices wishing to transmit first check the channel for a
carrier. If no carrier is sensed for some period of time, devices can transmit. If two
devices transmit simultaneously, a collision occurs and is detected by all colliding
devices, which subsequently delays their retransmissions for some random length
of time. CSMA/CD access is used by Ethernet /IEEE 802.3 and HomePlug.
CAT 3 - ANSI/EIA (American National Standards Institute/Electronic Industries As-
sociation) Standard 568 is one of several standards that specify “categories” (the
singular is commonly referred to as “CAT”) of twisted pair cabling systems (wires,
junctions, and connectors) in terms of the data rates that they can sustain. CAT 3
cable has a maximum throughput of 16 Mbps and is usually utilized for 10BaseT
networks.
CAT 5 - ANSI/EIA (American National Standards Institute/Electronic Industries
Association) Standard 568 is one of several standards that specify “categories” (the
singular is commonly referred to as “CAT”) of twisted pair cabling systems (wires,
junctions, and connectors) in terms of the data rates that they can sustain. CAT 5