Unit 33 P3 Case Study

UNIT 33 – P1-P2-P3-P4-P5-P6
Introduction:
In this assignment I will be describing how the internet operates.
Example of internet server:

How the internet works?
The internet and the worldwide web
The World Wide Web and the internet is not the same thing, and they are often confused with being the one and same. However, the internet existed long before the www (World Wide Web). The internet refers to the massive network of computers stretching all over the world. The word internet also found its origin through this, the word comes from the two words interconnected and network. Though we can all with each other through internet, all the computers are not connected to the one and same mega computer. For each network there are one or several computers that hold the information that is needed to access all the information. This arrangement is known as the client-server architecture.

Servers and clients:
The internet works on the basis that some computers act as ‘servers’. These computers offer services for other computers that are accessing or requesting information, these are known as ‘clients’. The term “server” may refer to both the hardware and software (the entire computer system) or just the software that performs the service. For example, Web server may refer to the Web server software in a computer that also runs other applications or it may refer to the computer system dedicated only to the Web server applicant. For example, a large Web site could have several dedicated Web servers or one very large Web server.

Internet Service Providers (ISPs):
An internet service provider is a business that offers Internet access service for both businesses and individuals. The main function of an ISP is to provide a link to the worldw...

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...dors, partners, customers, or other businesses. An extranet can be viewed as part of company’s Intranet that is extended to users outside the company. This is almost the same as an intranet, when the intranet is protected with a password, and accessible from the outside, then it becomes an extranet.
Wireless networks – While the term wireless network may technically be used to refer to any type of network that is wireless, the term is most commonly used to refer to a telecommunications network whose interconnection between nodes is implemented without the use of wires, such as a computer network. Wireless telecommunication networks are generally implemented with some type of remote information transmission system that uses electromagnetic waves, such as radio waves, for the carrier and this implementation usually takes place at the physical level or “layer” network.