The first definition is of “information technology”. Information technology is the technology used to store, manipulate, distribute or create information. The type of information or data is not important to this definition. The technology is any mechanism capable of processing this data [1]. As it is widely known to perform a calculation of any type manually is very cumbersome and time consuming. But if we could develop efficient programs written in many languages and get them thoroughly tested for every function it is expected to perform before putting to use could save lot of efforts and time. Also the chance of human errors that could occur when things are done manually could also be avoided provided the programs are developed keeping in mind the exact requirements that are sought after and developed properly to address the issues correctly without problems. Information technology works based on these simple concepts. As we know it’s applications in our lives is extremely wide ranging from simple addition, subtraction to flying an aircraft though autopilot and controlling a spaceship which has landed in Mars from the ground of the earth. Electronic databases now can store huge volume of data which can be used very easily and internet can be accessed for any information on any field of activities.Section one gives an introduction of the area. Section two presents the analyses of works done in the field. Section three presents the impacts of Information Technology on society so far and where it is heading to in future. We put our concluding remarks in section four


IMPLICATIONS :

With the development of computer industry and internet networks during the last three decades things have changed and global communication has reached an unprecedented height [11]. With these developments immense scopes have come to the surface to impart learning in a much more efficient and interactive way. Multimedia technology and internet networks have revolutionized the whole philosophy of learning and distance learning and provided us with the opportunity for close interaction between teachers and learners with improved standard of learning materials compared to what was existing only with the printed media. As we mentioned earlier it has gone to such an extent to create a virtual class room where teachers and students are scattered all over the world.We could be able to work on jobs being thousands of miles away through electromagnetic wave. That way the problem of skills shortage in some countries could be reduced and efficient people would be available to do the job.Quick dispatch of information globally has facilitated the commercial expansion to an extremely high level with a small firm being able to sell its products to another part of the world very easily as they can communicate to each other in no time and fix up the deal. Development of electronic commerce has made it very convenient for individual buyer to select the product online and make payment immediately. However this has its problem as the buyer has not seen whom he/she is buying from and can never hear from the seller once the money has been paid. This kind of case has come to our attention.Virtual reality, probably much more advanced and more seamlessly integrated devices (e.g. one could think of a device projecting images (perhaps from glasses) directly onto the lens of a human’s eye), allowing people to disregard their surroundings. This will allow people to travel virtually, e.g. one could go on holidays just by playing a certain program, relax there, walk around, take it easy [5].These days one can attend business meetings without having to be there physically. The business partners in such a virtual meeting are able to see and hear each other as if they are real. Mobility may be very important these days, however, in the new century, the need to travel physically is decreasing significantly, instead of flying to a meeting in New York one can just attend the meeting virtually and save a lot of time and money (and protect the environment) [5].Contact with other people will only happen if desired by a person, everything else will be done by technology. As an example, nobody will need to go shopping anymore, one will order things needed via some special sophisticated devices which are easy to handle and understand. One can display the goods, possibly even smell, feel or hear them [5].Treating untreatable disease like cancer would be much easier as the DNA structure could be defined accurately to guide the kind of cell-based treatment required for a particular patient.