In the old days, business was done using papers and flat registers. The organization of these registers was difficult and the storage of huge amounts of data was a real problem. Also, the process of preparing a report takes a lot of time. But when computers were introduced into the business field, everything had changed. Databases were used to store huge amounts of data and organize them. Instead of spending many hours (or maybe days) preparing a report, a query consisting of a number of statements can perform the job in some seconds.
Although databases were very useful, another problem has appeared. Companies and corporations spread over wide distances. A single company can have branches in all the governorates of a country and maybe with some branches outside that country. Data communicating and sharing was a problem. This problem was solved using computer networks which are the best way for data communicating. Nowadays, computer networks are essential for any business. Computer networks are used for file transfer, voice and video conferencing. For this reason, we have chosen our final project to discuss networks from different sides.