Keeping pace with the continuously changing trends in IT field, this new edition of Introduction to Information Technology incorporates the major changes that have taken place in the field of information technology since the release of its first edition, including not only the latest trends but also future technologies. The coverage of practical and historic perspectives on information technology demonstrates how concepts are applied to real systems and shows their evolution since its beginnings. Written in a clear, concise and lucid manner, each chapter is designed to be covered in two or three lectures while keeping inter-chapter dependencies to a minimum.