Hop count
A measure of distance between two points on the Internet. It is equivalent to the number of
gateways that separate the source and destination.
HTML
Hypertext Markup Language - The page-coding language for the World Wide Web.
HTML browser
A browser used to traverse the Internet, such as Netscape or Microsoft Internet Explorer.
http
Hypertext Transfer Protocol - The protocol carry world-wide-web (www) traffic between a
www browser computer and the www server being accessed.
ICMP
Internet Control Message Protocol - The protocol handle errors and control messages at
the IP layer. ICMP is actually part of the IP protocol.
Internet address
An IP address is assigned in blocks of numbers to user organizations accessing the
Internet. These addresses are established by the United States Department of Defense's
Network Information Center. Duplicate addresses can cause major problems on the
network, but the NIC trusts organizations to use individual addresses responsibly. Each
address is a 32-bit address in the form of x.x.x.x where x is an eight- bit number from 0 to
255. There are three classes: A, B and C, depending on how many computers on the site
are likely to be connected.
Internet Protocol (IP)
The network layer protocol for the Internet protocol suite.
IP address
The 32-bit address assigned to hosts that want to participate in a TCP/IP Internet.
ISP
Internet service provider - A company allows home and corporate users to connect to the
Internet.
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