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HEX
Short for hexadecimal refers to the base-16 number system, which consists of 16 unique symbols:
the numbers 0 to 9 and the letters A to F. For example, the decimal number 15 is represented as F
in the hexadecimal numbering system. The hexadecimal system is useful because it can represent
every byte (8 bits) as two consecutive hexadecimal digits. It is easier for humans to read
hexadecimal numbers than binary numbers.
I
IEEE
Institute of Electrical and Electronic Engineers.
Intranet
This is a private network inside an organization or company, which uses the same software you
will find on the public Internet. The only difference is that an Intranet is used for internal usage
only.
Internet
The Internet is a globally linked system of computers that are logically connected based on the
Internet Protocol (IP). The Internet provides different ways to access
p
rivate and public
information worldwide.
Internet address
To participate in Internet communications and on Internet Protocol-
b
ased networks, a node must
have an Internet address that identifies it to the other nodes. All Internet addresses are IP
addresses
IP
Internet Protocol is the standard that describes the layout of the basic unit of information on the
Internet (the packet) and also details the numerical addressing format used to route the
information. Your Internet service provider controls the IP address of any device it connects to
the Internet. The IP addresses in your network must conform to IP addressing rules. In smaller
LANs, most people will allow the DHCP function of a router or gateway to assign the IP
addresses on internal networks.
IP address
IP address is a 32-
b
inary digit number that identifies each sender or receiver of information that
is sent in packets across the Internet. For example 80.80.80.69 is an IP address; it is the closet
thing the Internet has to telephone numbers. When you “call” that number, using any connection
methods, you get connected to the computer that “owns” that IP address.
ISP
Internet Service Provider is a company that maintains a network that is linked to the Internet by
way of a dedicated communication line. An ISP offers the use of its dedicated communication
lines to companies or individuals who can’t afford the high monthly cost for a direct connection.
J
JAVA
Java is a programming language that is specially designed for writing programs that can be safely
downloaded to your computer through the Internet without the fear of viruses. It is an object-
oriented multi-thread programming best for creating applets and applications for the Internet,
Intranet and other complex, distributed network.
L
LAN
Local Area Network a computer network that spans a relatively small area sharing common
resources. Most LANs are confined to a single building or group of buildings.
N
NAT
Network Address Translator generally applied by a router, making many different IP addresses
on an internal network appear to the Internet as a single address. For routing messages properly
within your network, each device requires a unique IP address. But the addresses may not be
valid outside your network. NAT solves the problem. When devices within your network request