Management Information System (M.I.S.) is basically concerned with processing data into information. Data collection involves the use of Information Technology (IT) comprising: computers and telecommunications networks EMail, Voice Mail, Internet, telephone, etc. Computers are important for more quantitative, than qualitative, data collection, storage and retrieval; Special features are speed and accuracy, and storage of large amount of data. Telecommunications provide the means for one-way or two-way communication and for the transmission of messages. A combination of IT is used: telephone, computer, processor, printer, etc. A lot of time and money are saved and the security of data and messages is ensured. A management information system (MIS) enables businesses to provide answers to managers in search of knowledge. MIS does this by combining raw data about the organization’s operations (contained in its basic information technology systems) with information gathered from employees in expert systems that reflect the organization’s procedures. Before the widespread use of computers, many organizations found difficulties in gathering, storing, organizing and distributing large amounts of data and information. Developments in computer technology made possible for managers to select the information they require, in the form best suited for their needs and in time they want. This information must be current and in many cases is needed by many people at the same time. So it have to be accurate, concise, timely, complete, well presented and storable. Most firms nowadays depend on IT. But personal computers (PCs) themselves will not improve organizational productivity: this only comes about if they are used efficiently and effectively. The information system is the mechanism to ensure that information is available to the managers in the form they want it and when they need it. It is designed to support their work through providing relevant information for their decision-making. Computer systems can clearly aid organizations in the processing of data into accurate, well presented, up-to-date and cost-effective information. Weather that information is also concise, relevant, timely and complete will depend largely on the capabilities of the people involved in its processing and selection.