The use of computers for the purpose of storage, retrieval, transmission and manipulation of data is known as information technology. It is a sub-discipline of information and communication technology which is concerned with the commercial use of computers. Some of the important innovations of information technology are television and radio equipment, performance management software, and video conferencing equipment. The software studied under this domain can be categorized into system software and application software. System software can be broadly classified into operating systems, basic input/output systems, boot programs, assemblers and device drivers. Information technology is an upcoming field of science that has undergone rapid development over the past few decades. The topics included in this book on information technology are of utmost significance and bound to provide incredible insights to readers. It will serve as a valuable source of information for those interested in this field.