Chapter 7, Problem 1DQ

Explanation of Solution

Internet:

• The internet is also called as world-wide system of computer networks that are connected through routers and servers.
• If one or more computers are connected to the Internet then, they can send and get any kind of information like audios, texts, images, etc.
• Internet is generally used to get and know about lots of information around the world.
• The internet uses TCP/ IP in order to transfer information through different types of media.
• People can access Internet with the help of “Internet Service Provider (ISP)”. It is an organization that offers services for people in order to access the Internet.

Working of Internet: Internet constitutes of two components that helps in understanding the internet. They are:

• Hardware:
• This component includes cables, routers, smartphones and other devices. These combines and create a network of networks.
• Some hardware devices become the end points which are called the clients and the machines that store information which the users seek on the internet are known as servers.
• Other hardware devices are called as nodes that act as a connecting point along the route.
• Protocols:
• The hardware would not be able to create a network without using the second component which is the protocol.
• It is nothing but the set of rules that the devices need to follow to complete the tasks.
• All the devices must follow the same set of protocols in order to establish a connection and send information.
• This provides a common language and method for the devices that helps in transmitting the data.

Primary protocols:

They are nothing but the rules that explains the communication between clients and servers. There are several protocols like.

• HTTP – Hyper Text Transfer Protocol: It is based on client-server model. It is sued to establish connection between the client and server...