What is a Network? | And the types of Computer Network |

Hello Friends, I'm Anshu Singh In this article I want to discuss What is a Network? | And the types of Computer Network | So please read at the end of the post then can learn more about it i.e., Networking.

 

We all are familiar with the word "network". Then what is a network? How it works? How two machines together can share files? And we can also learn about different types of networks, need for networking, modem, and the other related things. So let's discuss all these things then we able to know more about it. 

 

 

Network  Networking  |  need for Networking  |  components of a Network components of a  computer Network  |  Modem  |  Types of Networks  Local Area Network   | Metropolitan Area Network  |  Wide Area Network | Internet  |

 

 

What is a network?


One pc will be shared among a variety of computers if they're interconnected. Interconnected computers kind(form) the pc network. As well as sharing hardware, a network permits computers or users to share software and information.

A pc that may not be connected to a network is thought of as a complete pc.

A pc connected to a network is thought of as a digital computer or a Node or a bunch.

 

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Networking


Networking refers to the creation of networks. Network could be a cluster(group) of devices joined to 1 another. So, networking makes sharing of information and resources easier. Same way, if we tend to interconnected computers, it'll form a network of computers.


Need for Networking


The need for networking lies in the main to interrupt the barriers of distance, time, and price. This is because communication through computers will be done to any distance in a terribly short quantity of time and in a terribly cost-efficient manner.

The networking is required due to the subsequent reasons:
1. It breaks the barriers of distance, value, and time.
2. It is terribly valued effective as compared to phone networks.
3. All types of knowledge like text, audio, video, pictures, graphics, etc. will be transmitted
through it.

 

Components of a network


When 2 persons talk with one another, one speaks and therefore the alternative listens. The one who is speaking is the sender of knowledge, and therefore the one who is listening is that the receiver of the knowledge. And one alternative factor, have you ever ever puzzled that however will the voice originating from the sender'sender mouth reach the ears of the receiver? this can be as a result of, the air gift their carriers the sound from senders to receivers. Therefore, the communication channel in the air.

There square measure three elements of a network:
1.The sender
2.Communication Channel-the air
3.The receiver

components of a pc network:
There square measure 5 elements of a pc network:
1.Sender pc
2.Sender equipment(modem)
3.Communication channel(telephone cables)
4.Receiver equipment(modem)
5.Receiver pc

Computers can also be connected through phone so phone lines can work as a communication channel for them. once computers square measure connected through telephones, an extra instrumentation called electronic equipment(modem) is employed.

This is as a result of the info signal generated by computers(digital signal) is in a very kind that is different from the signal kind that may be carried by phone lines(analog signal).

The electronic equipment(modem) converts the pc generated signal(digital signal) into a kind that may be carried by phone cables(analog signal).On the receiver's finish, the electronic equipment initial converts the received signal into the computer's intelligible kind and so passes it to the pc.


Modem


Modem could be a device attached to computers that may convert digital signals to analog signals and vice-versa. Digital signal could be a cluster of separate electronic units that square measure transmitted in speedy succession, ANd an Analog signal consists of continuous electrical waves.

Modem is a brief name for MOdular-DEmodulator wherever Modulator will convert digital signals to analog signals and detector(DEModulator) will the appropriate.

Modem transmits information at totally different speeds, measured by the number of bits of knowledge they send per second(bps). Examples of Modems speeds are: a pair of Mbps, 8Mbps, etc.


Types of Network


A network will mean a tiny low cluster of joined computers to a sequence of some hundred computers of different types (e.g., PCs, minis, mainframes,etc.)spread around the world. Thus, networks vary in size, quality and geographical unfold. Mostly, computers square measure classified on the basis of geographical unfold, and on the premise, there will be 3 kinds of networks:

1.Local space Network(LAN)
2.Metropolitan space Network(MAN)
3.Wide space Network(WAN)

 

1.Local Area  Network(LAN)
Local Area Networks that square measure confined to a neighborhood area(e.g., an office, a building, or a factory) square measure called Local Area Network(LAN). The key purpose of a LAN is to serve its users in resource sharing. The hardware in addition to software system resources square measure shared through LANs. LAN users will share information, information, programs, printer, hard-disks, modem, etc.

 

2. Metropolitan space Network(MAN) 

Metropolitan Area Networks square measure the networks unfold contact a town. the aim of a person is also the sharing of hardware and software system resources among its users. For example, cable TV networks that square measure contact a town, will be termed as Metropolitan Area Networks.

 

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3.Wide space Network(WAN)
The networks unfold across countries square measure called Wide Area Network. a large space Network(WAN) could be a cluster of computers that square measure separated by massive distances and tied along. It will even be a gaggle of LAN that is unfolding across many locations and connected along to appear like one huge LAN. The WAN links computers to facilitate quick and economical exchange of knowledge at less prices and high speeds.

 

Internet


Internet could be a computer-based worldwide data network. It will be assumed as AN example of WAN(Wide space Network). the web consists of an oversized variety of smaller interconnected networks. These networks could link tens, hundreds, or thousands of computers, facultative them to share information with one another, and to share varied resources, like powerful supercomputers and databases(collection of data) of knowledge.

The Internet has created it doable for folks everywhere the planet to effectively and inexpensively communicate with eath alternative. in contrast to ancient broadcasting media, like radio and tv, the Internet could be a decentralized system. every connected individual will communicate with anyone else on the web and might publish ideas.

 

 

At the End

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