Transcript Internet

What is the Internet?
 A network
of networks
 Based on TCP/IP (Transmission Control Protocol/Internet
Protocol)
 Global
 A variety of services and tools
1
What is the Internet?
A network of networks, or "internet," is a group of two or
more networks that are:
interconnected physically
 capable of communicating and sharing data with each other
 able to act together as a single network

2
What is the Internet?
For this to work, the networks and machines that are part of
an internet have to agree either to speak the same "language"
when they are communicating or to use an "interpreter."
This "language" is software that enables the different types of
machines on seperate networks to communicate and exchange
information.
3
What is the Internet?
To be used by different types of machines yet be understood
by all of them, the software must follow a set of rules, or
protocol.
The Internet, with a capital "I", is the network of networks
which either use the TCP/IP protocol or can interact with
TCP/IP networks via gateways (the interpreters).
The Internet presents these networks as one, seamless network
for its users.
4
What is the Internet?
The Internet covers the globe and includes large, international
networks as well as many smaller, local-area networks
(LANs).
5
What is the Internet?
The Internet offer access to data, graphics, sound, software,
text, and people through a variety of services and tools for
communication and data exchange:
remote login (telnet)
 file transfer (ftp)
 electronic mail (e-mail)
 news (USENET or network news)
 hypertext (WWW)

6
What is the Internet?
In Summary:
The Internet is the global network of networks which either
use the TCP/IP protocols or are able to interact with TCP/IP
networks via gateways, and provides users with electronic
mail messaging, remote login, file transfer, network news, the
WWW, and other related services and tools.
7