The simplest goal to be achieved is transfer of data. A computer network not only allows us for the faster means of data communication but it also helps in accessing programs, databases and other softwares or tools that are distant from our approach.
A simple network comprises of computers, network operating system software, cable (wiring) to connect the devices, network interface cards, switches and a router (Laudon, Laudon 299). Almost all the businesses now a days use spreadsheets, wordpads etc. to store their germane information which might also be needed by other departments of that companies and the interruption in transporting this information may cause some hindrances for the organization that might lead to ineffective and inefficient production. Connecting all the computers of that organization within and outside departments really helps a lot in increasing the competitive advantage of the organization as the data will be available on time. In addition, networking also helps in reducing the cost of saving work in different soft copies and hard copies since it allows the sharing of work.
Networking is the buzz word these days. ...
The data were stored on punch cards and they were the only source of transferring data from one computer to another. In 1960s multi terminal mainframes were used which were pretty faster. Multiple users used to be connected through a single mainframe with a very good response time of the computers. This computing technique gave birth to the modern form of networking and the concepts of "client" and "server". "This model refers to the client - server relationship. The server is the one specialized powerful computer that provides the information that the client computers require. The client is the computer initiating the inquiry" (History of networking 1). Next, came the era of mini computers. These computers work faster than a main frame when a couple of computers are joined in parallel and the cost is also cheaper than that of mainframe. Realizing this fact, the users started shifting towards mini computers and started to setup small networks through local area connection. These networks were called Local Area Networks or LAN. This led to the evolution of networking and from here on, the concept of networking only grew. The growth is still continuing and will go a long way. Therefore, Martin and Leben had correctly predicted years ago that "1990s will be a decade of revolutionary change in computer networking" (3).
Individuals and organizations not only need to set up networks but it is essential that those networks qualify as good networks. A good network must be able to meet the following standards: security, reliability and performance. An efficient network must follow these criteria. Performance of a system is checked by the execution time,