Why Do We Need Computer Network

In this tutorial, we are going to discuss that why a computer network is required.

In a word, we can say that we need a computer network for resource sharing. For example, suppose we want to share with others some of the resources in our computer or some of the resources that are connected to our computer. In that case, the easiest and fastest way to share these resources is to build a network between the computers. We can use any wired or wireless medium to build this network. If we use a wired medium then we have the option of UTP cable, STP cable, Fiber Optic cable, etc. And if we want to use wireless medium then we have available different types of wireless media. Such as Radio waves, Micro Waves, Infrared, etc.

A computer resource can contain more than just CD-Rom, Printer, Scanner. The document that stores in a computer hard disk will also count as a resource.

Before the network invention, if data transfer is required from one computer to another computer or a document from one PC would need to be printed on another PC then a floppy disk was used.

If there are ten users in an office and each of them needs to print, so transferring documents using floppy in this way and printing them is a lot of hassle or time-consuming. Again if everyone has to provide a printer separately, it can be said to be a matter of cost or disadvantage.

So in all these cases, the only hope is a network. This allows devices with one PC to be easily accessed from another PC. A document from one PC can be easily opened from another PC. Which saves a lot of time as well as saves a lot of costs.