This book is an excellent tool that users can rely on. Its direct, complete presentation and easy-to-use style shows the latest in computers and allows for quick grasp of the concepts presented. Coverage of microcomputers, midrange, and mainframe computer systems is included throughout the book, along with information about ethics, security, the internet, word processing, desktop publishing, networking, database management systems, and programming and languages. For those seeking employment in the field of Information Technology, including database management and systems.