Planet Technology ICA-100 - Manual (Page 78)

Appendix C - Specifications
75
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
private and public information worldwide.
Internet address
To participate in Internet communications and on Internet Protocol-based 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 informa-
tion 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 that 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-binary digit number that identifies each sender or receiver of infor-
mation which is sent in packets across the Internet. For example 80.80.80.69 is an IP
address, it acts as the telephone number of Internet. 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 dedi-
cated 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 is 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 that makes 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 information from the Internet, the
requests are forwarded to the Internet under the router's IP address. NAT distributes
the responses to the proper IP addresses within your network.
Network
A network consists of a collection of two or more devices, people, or components that
communicate with each other over physical or virtual media. The most common types
of network are:
LAN – (local area network): Computers are in close distance to one another. They
are usually in the same office space, room, or building.