Increasingly, every aspect of the planets effort to communicate effectively and in a timely manner depends on Information Systems. In the last two decades our world has been changed gradually form one condition to another. The revolution of new ideas always comes up to the minds of every person, especially the idea to improve technology which people need to make the living better. As the result, modern technology has been bringing people certain advantages such as ways for fast communication. Nowadays, people can get latest news from any parts of the world very quickly, pay their bills, by using E-mail and Internet. lso, the internet can be seen in aiding the spread of culture, because all of the communication made possible by the internet. Moreover, telephone-local or/and oversea is playing a key role for people to communicate to with each other. Information Systems is the back bone of todays communication. The massive data and increasing volumes of data needs organized storing and fast and effective processing for variety of purposes fro m decision making to risk management, from transaction processing to state-the art products.
The large-scale businesses are globally distributed across the world which needs stable and reliable infrastructure and network administration and the applications which can run and handle simultaneous, real time and fast processing. The availability of technology has enabled the businesses to offer variety of services which has made Information Technology as part of the businesses today. What seems to be a simple online banking transaction for instance, involves web-based programs which run on a one platform and access the data in another platform like mainframe and tho make there should e network communication and systems which can communicate to each other, available 24 by 7. The more businesses grow the more dependent they become of Information Systems Some make a clear distinction between information systems, ICT, and business processes. Information systems are distinct from information technology in that an information system is typically seen as having an ICT component. Information systems are also different from business processes. Information systems help to control the performance of business processes .