When two are more computer / Devices are connected with each other . As they sharing their data and resources with each other than they formed a network which known as computed network or also called as information Network .This network use two type of technologies computing and telecommunication .In telecommunication we use cable,radio waves,satellite to communicate with each other .Internet or www is a wide and common example of computer network .There are many uses of computer network such as

Easy to access

Less costly we can share different devices such as scanner,printer,software with other user who connected with network.

It makes possible to access costly devices if they are not enable to buy them.

Provide faster communication and transfer of data with this we share our ideas ,working or projects with out employees,friends,teachers etc.

As computer network provide us many useful and amazing services but there are some disadvantages of using it sometime these advantages create a big problems.

Sometime it disable to secure your privacy from cyber attack.

Virus may effect your computer if you connected with network.