With the current banking system in the country’s (Nigeria), the computer networking system has become important in the banking industry as the bank officers and customers have began to appreciate accessibility, creditability and constancy of the network system, this project discovered the importance of computer networking system, in the banking industry. However, quantitative and analytical were used in the compilation of facts, use of bar chart, pie chart, testing of hypothesis, establishing relationship and drawing inferences based on the information collected. Moreover, from the analysis, through questionnaire, direct interview and observation, this study should be able to prove the fact that despite all the problem of the computer networking system in the banks that have started the implementation, like communication problem from MTN software problem, the system I still required in the banking industry to help perform the major banking operations like funds transfer, printing of balances making information to be available from any branch to any other branch when needed etc which ordinary computerization of the bank cannot handle.
However, the success of the computer networking system in the banking industry shall be however recorded mainly in the area of minimizing the time spent by customers in the bank when carrying out any transaction, increasing the efficiency and effectiveness of the level of performance by the bank officers, increase in the number of branches since the commencement of the programme and in the number of services rendered by these banks. Furthermore, the study also in the final analysis will make some adequate recommendation to the banking industry. Customers and MTN communication such that all old and new generation banks should embark upon the computer networking system.