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| A Computer. |
Unlike online services,
which are centrally controlled, the Internet is decentralized by design. Each
Internet computer, called a host,
is independent. Its operators can choose which Internet services to use and
which local services
to make available to the global Internet community. Remarkably, this anarchy by
design works exceedingly well. There are a variety of ways to access the Internet.
Most online services offer access to some Internet services. It is also
possible to gain access through a commercial Internet Service Provider (ISP).
No one
actually owns the Internet,
and no single person or organization controls the Internet in its entirety. The
Internet is more of a concept than an actual tangible entity, and it relies on
a physical infrastructure that connects networks to other
networks.
The Internet and the World Wide Web
The Internet is not synonymous
with World Wide Web. The Internet is a massive network of networks,
a networking infrastructure. It connects millions of computers together
globally, forming a network in which any computer can communicate with any
other computer as long as they are both connected to the Internet.
The World
Wide Web, or simply Web, is a way of accessing information over the medium of
the Internet. It is an information-sharing model that is built on top of the
Internet.
Facts!
- More than 100 countries are linked into exchanges of data, news and opinions.
- As of December 31, 2011 there was an estimated 2,267,233,742 Internet users worldwide. (32.7% of the world's population.)
- The first-ever webcam was used to watch a pot of coffee
- One in six marriages today occur because the couple met online.
- The entire World Wide Web used to be just one computer.
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