By Alexis Leon & Mathews Leon, Leon TechWorld, 1999

“Man is still the most extraordinary computer of all.”
– John F. Kennedy

In today’s information age, a basic understanding of computers is essential. Computers touch every aspect of our daily lives, and anyone who hopes to succeed in the modern world cannot afford to ignore computer and communication technologies. Regardless of one’s profession, familiarity with computers has become indispensable—whether it is writing a document on a word processor, preparing a budget in a spreadsheet, sending email, browsing the Internet, or creating a presentation. Our society has grown so dependent on computers that functioning without them is almost unimaginable. When used effectively, they are powerful tools that significantly enhance human productivity.

Introduction to Computers is written for anyone who wants to understand computers, learn the fundamentals, and make use of the latest developments in information technology. The book covers the essentials of computer science and IT—from the history of computing to modern advancements in the Internet, email, the World Wide Web, multimedia, virtual reality, and more. Wherever appropriate, we have incorporated the latest technological trends to ensure the book remains current and relevant.

Drawing on our long experience as students and users of computers and high technology, we have created a book that mirrors our own learning journey—starting from the basics and gradually embracing the newest innovations. Our aim has been to make this book engaging, accessible, and enjoyable to read. Many introductory texts treat computing purely as a technical or mechanical subject; we believe it is equally a human enterprise. Every chapter, explanation, and illustration has been crafted to show that learning and using computers can be a rewarding and personally enriching experience.