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Glossary
G
Gateway
GUI
H
Hexadecimal
Host
I
ICMP
Internet
IP
LPCI810
A device that enables communication between networks using
different protocols. See also router.
Graphical User Interface
A base-sixteen numbering system that uses sixteen sequential
numbers (0 to 9 and the letters A to F) as base units before
adding a new position. On computers, hexadecimal is a
convenient way to express binary numbers.
In IP, a host is any computer supporting end-user applications or
services with full two-way network access. Each host has a
unique host number that combined with the network number
forms its IP address.
Host also can mean:
A computer running a web server that serves pages for one or
more web sites belonging to organization(s) or individuals
A company that provides this service
In IBM environments, a mainframe computer
Internet Control Message Protocol is a protocol used for error,
problem, and informational messages sent between IP hosts and
gateways. ICMP messages are processed by the IP software and
are not usually apparent to the end-user.
A worldwide collection of interconnected networks using TCP/IP.
Internet Protocol is a set of standards that enable different types
of computers to communicate with one another and exchange
data through the Internet. IP provides the appearance of a single,
seamless communication system and makes the Internet a virtual
network.
Section 4
PAGE 15
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