The Internet, also known as the Net, is a worldwide network of computers that are interlinked in a similar way to the postal system, but at ultra-fast speeds. With the postal service, we send each other messages written on paper inside sealed envelopes, while with the Net we send each other small packets of digital data from our computers.
For this light-speed postal service to work, we use a language called Transmission Control Protocol/Internet Protocol (TCP/IP). Any computer, smartphone, tablet, or other device that goes online must have an IP address.
In the Internet, dedicated routers and servers allow an electronic device to connect to any other devices globally.
When the two devices are connected over the net, they can receive and send several types of data including computer programs, text, video, voice, music, and graphics.
History of the Internet
The Internet did not have a single inventor, unlike technologies such as the telephone or light bulb. It evolved over time.
It gradually emerged in the 1960s in the United States as a government weapon during the Cold War. For a long time, researchers used it to communicate and share information with one another. Today, we use the Net for so many things that it has become an integral part of our daily lives.
If you are less than thirty years old, you likely cannot imagine a society where nobody ever went online. However, it did exist.
The World Wide Web
We call it the World Wide Web, WWW, or simply the Web. It is way of accessing data over the medium of the Internet.
In other words, the Web is a data-sharing model that is built on top of the Internet. Websites form part of the WWW.
Of the many languages we use over the Net to transmit data, the Web only uses the HTTP protocol. HTTP stands for Hypertext Transfer Protocol Secure.
HTTP-using Web services that use applications to communicate in order to exchange business logic, use the Web to share data.
The Web also uses web browsers to access websites. Firefox, Chrome, Explorer, and Safari, for example, are web browsers.
Websites contain documents, i.e., web pages, that link to each other via hyperlinks. These documents also contain texts, graphics, sounds, and video.
INTERNET USE
- Education and self improvement.
- Discount in shopping.
- Searching and applying for jobs.
- Online ticket booking.
- Online group discussion.
- Medical and Hospitals.
- Electronic mail and Reading news paper.
- Video confessing.
- Video and image sharing.
- Internet banking
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