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Abstract nation plays an increasingly important role in economic it. It is a knowledge that was unknown to the receiver its reception. It can only be derived from data that is », timely, relevant and unexpected. certain situations, raw data may reguire little or no before constituting information for the user. But modern usually requires that data undergo complicated analysis >y are meaningful. data explosion generated by twentieth-century technology has in a deluge of information of immense proportions. Man has |t» live and work in his dynamic environment by extending his icity with mechanical, electrical, and electronic devices, lessing the best in information technology can he retains an almost endless flow of paperwork. >ination of computer technology and data communication is of what has become known as ’information technology’. abbreviated to I T, is semi-officially defined as the processing storage and dissemination of vocal, ”textual and numerical information by a microelectronic ition of computing, telecommunications and video (Lonley |