This document discusses the applications of computers in various fields. It outlines how computers are now essential in offices, banks, industries, education, training, engineering, stores, healthcare, law enforcement, transportation and at home. Computers are used for tasks like word processing, data management, design/simulation, record keeping, communications and more. The document provides examples of how computers are utilized specifically in offices, banks, industries, education, engineering, stores, law, policing, airlines and the arts.