Question

What’s a computer network and why is it useful? What sorts of components are required for building one?
Answer in 60 words

Answer 1

Answer:

it is a network which connects with different devices on a server .it is useful for sharing information, sharing resources and security and many more

I hope it will help you guys

thanking you

Answer 2

Answer:

What is computer network:

• It is network among the computer which is allowed to communicate via any type of a medium.

Why is computer network useful:

Computer network is very useful as it allows communication of two computers which is very very useful for any task. If computers were to stop communicating , it wiould be hard to imagine a life like how we are living today.

types of computer network:

1. lan (local area network) :

• a local area network is a computer network covering a small area like a home, office, or a group of buildings such as a school or college.                

• a simple LAN can consist of of a personal computer and a printer or it can connect several computers together.

• a Lan is limited in size, typically spanning a few hundred metres.

• it is usually fast, with speeds from 10 mbps to 10 gbps.

• it requires little wiring, typically a single cable connecting to each device.

• its setup involves lower cost compared to man's or wan's.

• lan's can be either wired or wireless.

2. man (metropolitan area network)

• a man is a network covering a large area like a campus, offices, city.

• it is used for interconnection of several lan's.

• a MAN is a high speed network and allows sharing of multiple resources. eg:cable tv network, dsl

    

3.wan (wide area network)

• a wan connects lan and man together.

• it covers a very large area like a country or continent.

• wan's may transmit data over high-speed phone lines or wireless links such as satellites.

• internet is an example of wan