Tuesday, July 3, 2007

What is the Internet

The Internet is a global network of computers. Every computer that is connected to the Internet is considered a part of that network. This means even your home computer. It's all a matter of degrees, you connect to your ISP's network, then your ISP connects to a larger network and so on. At the top of the tree is the high-capacity backbones, all of these interconnect at 'Network Access Points' 'NAPs' at important regions around the world. The entire Internet is based on agreements between these backbone providers who set in place all the fibre optics lines and other technical aspects of the Internet. The first high speed backbone was created by the 'National Science Foundation' in 1987.

The Internet was first created by the Advanced Research Projects Agency (ARPA) of the U.S. government in 1960's, and was first known as the ARPANet. At this stage the Internet's first computers were at academic and government institutions. They were mainly used for accessing files and to send email. From 1983 onwards the Internet as we know it today started to form with the introduction of the communication protocol TCP/IP to ARPANet.

Since 1983 the Internet has accommodated alot of changes and continues to keep developing. The last two decades has seen the Internet accommodate such things as network LANs and ATM and frame switched services. The Internet continues to evolve with it becoming available on mobile phones and pagers and possibly on televisions in the future.

The actual term "Internet" was finally defined in 1995 by FNC (The Federal Networking Council). The resolution created by the The Federal Networking Council (FNC) agrees that the following language reflects our definition of the term "Internet". "Internet" refers to the global information system that,

· is logically linked together by a globally unique address space based on the Internet Protocol (IP) or its subsequent extensions/follow-ons.

· is able to support communications using the Transmission Control Protocol/Internet Protocol (TCP/IP) suite or its subsequent extensions/follow-ons, and/or other IP-compatible protocols.

· provides, uses or makes accessible, either publicly or privately, high level services layered on the communications and related infrastructure described herein.

The Internet and the World Wide Web are closely related but not the same.

What's on the Internet besides the Web ?

· Send and receive e-mail messages

· Join in a Usenet newsgroup.

· Transfer documents and programs between your computer and FTP, or file transfer protocol, sites.

· Use programs such as Gopher to locate information on other sites.

Just a few of the other things it allows people to do,

· send email,

· view web sites,

· download files such as mp3 and images,

· chat with people live online,

· post messages on newsgroups and forums.

· play mulitplayer games online

· watch movies and tv porgrams

· chat and view on webcams