The document discusses the basics of how the internet works. It defines the internet as the worldwide network of connected computers that allows for communication. It explains that the World Wide Web, accessed through web browsers like Internet Explorer and Chrome, is one of the biggest services on the internet and is used by billions globally. It also outlines some key components required for the internet to function, including servers that store information, routers that ensure packets reach the proper destination, transmission lines, and protocols like HTTP, TCP, and IP that machines follow.

1. Working Principles of Internet
Prepared By,
Ms.N.RUBA.,MCA.,M.Phil.,
Dept. of Computer Applications,
Bon Secours College For Women,
Thanjavur.

2. What Is Internet?
The Internet is the biggest world-wide
communication network of computers.
The Internet has millions of smaller domestic, academic,
business, and government networks, which together
carry many different kinds of information.

3. The term is sometimes abbreviated as "the net".
The World Wide Web is one of its biggest services. It is used by
billions of people all over the world.

4. World Wide Web-web browser
 To access webpages, you must use a Web
browser, usually referred to as a browser.
 Web browsers are programs that display text,
data, pictures, animation and video on the
Internet.
 Web browsers provide the software interface that
enables you to use your mouse to click hyperlinked
resources on the World Wide Web.

5. Web browser-cont’d
 Web browsers were initially only used for surfing
the Web. They are now more universal and allow
users to do many more tasks, including conducting
searches, e-mailing, transferring multimedia files,
participating in discussion groups and much more.
 Some examples of commonly used Web browsers
are Internet Explorer, Mozilla Firefox, Google
Chrome and Safari.

6. The internet user is growing at a fast phase . we use internet in many
fields like
 Banking
 Educational institutions
 Ticket reservation
 Medical field
 Communication
 Entertainment
 Business

7. Required Component
 Server : Machine that store the information we seek on
the internet.
 Node : A node can be a computer or some other device.
It is also referred as hub.
 Router: Their job is to ensure
the packets always arrive at
the proper destination.

8. Transmission line : which can be physical as in the case of cables
and fiber optics or they can be wireless singles from satellites ,
cell phone or 4G towers or radios.

9. Protocols
 Protocols are sets of rules that machine follow to
complete tasks.
 Hypertext transfer protocol(HTTP)
 Transmission control protocols (TCP)
 Internet protocols (IP)

10. Thank You