Computer network is one of the most significant facilities in the world today, it has more advantage despite the fact that has some drawbacks. A computer network is a set of computer system and other hardware devices that are connected together electronically, also the information and resources can be shared among them to make easier communication. Networking is one of the most important facilities in the 20's century. This essay will discuss about the advantage and disadvantage of computer networks according to the idea of two authors.

Wiley & Sons (2008), states that computer network has many benefits in daily life. Firstly, the main advantage of PC networks is resource and data sharing, PC network users can access other workstation and work together, also they able to see the files that are presented on other workstations remotely. Secondly, networks allow users to share hardware resources, for instance printers, it means each user doesn't have to have own printer, this is very useful for both business and home networks. Finally, internet connection is another shared resource that has become very worthwhile in recent years, and is the main factor for home networks very often.

Srivastava (2013), mentions that computer network has some drawbacks .Firstly, virus is the biggest disadvantage of networks, if one client\ computer of the network gets affected by virus, it has the same effect or threat to the other clients in the system as well, because each workstation\client link with each other internally. Final disadvantage is the shortage of strength, if the computer server goes down, the system of network is entirely worthless. Similarly, if the connecting device in the network breaks down, the system is going to stop completely.

In conclusion, it is clear that computer network has a great role and more advantages in the world now. However, it has