​Computer Network

​What is computer network :

​Computer network is a group of computers linked to each other that enables the computer to communicate with another computer and share their resources, data, and applications.

​Before we move on, lets take look to this video :

​https://www.youtube.com/watch?v=3QhU9jd03a0

​Type of Network

A computer network can be categorized by their size. A computer network is mainly of four types:

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• ​LAN(Local Area Network)

• PAN(Personal Area Network)

• MAN(Metropolitan Area Network)

• WAN(Wide Area Network)

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​What is LAN :

​Local Area Network is a group of computers connected to each other in a small area such as building, office.

​LAN (Local Area Network)

​This is the example of LAN

​What it use?

​LAN is used for connecting two or more personal computers through a communication medium such as twisted pair, coaxial cable, etc.

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It is less costly as it is built with inexpensive hardware such as hubs, network adapters, and ethernet cables.

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The data is transferred at an extremely faster rate in Local Area Network.

Local Area Network provides higher security.

​LAN (Local Area Network)

​PAN(Personal Area Network)

​What is PAN?

​

Personal Area Network is a network arranged within an individual person, typically within a range of 10 meters.

​This is the example of PAN

​PAN (Personal Area Network)

What is PAN use?

Personal Area Network is used for connecting the computer devices of personal use is known as Personal Area Network.

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Personal Area Network covers an area of 30 feet

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Personal computer devices that are used to develop the personal area network are the laptop, mobile phones, media player and play stations.

​PAN (Personal Area Network)

​There are two type of PAN :

• ​Wired Personal Area Network

​ Wired Personal Area Network is created by using the USB

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• ​Wireless Personal Area Network

​Wireless Personal Area Network is developed by simply using wireless technologies such as WiFi, Bluetooth. It is a low range network.

​MAN(Metropolitan Area Network)

​What is MAN?

​A metropolitan area network is a network that covers a larger geographic area by interconnecting a different LAN to form a larger network.

​

​This is the example of MAN

​MAN(Metropolitan Area Network)

​Uses of Metropolitan Area Network:

• MAN is used in communication between the banks in a city.

• It can be used in an Airline Reservation.

• It can be used in a college within a city.

• It can also be used for communication in the military.

​WAN (Wide Area Network)

​What is WAN?

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​For this topic will be explain in the next meeting.