Since the content is standard, you can pair a borrowed old edition with free video lectures:

To understand why this book is so highly regarded, you first need to understand the man behind it. Professor Vaidyeswaran Rajaraman (1933–2025) was more than just an author; he was a pioneer who laid the very foundations of computer science education in India.

The core philosophy is to define IT as "the technology used to acquire, store, organize, process, and disseminate processed data, namely, information". The key features that make this textbook a perennial favorite include:

The book is divided into several chapters, each focusing on a specific aspect of IT. Some of the key topics covered include:

Unlike typical introductory textbooks that often read like a "cookbook of skills," Rajaraman’s work distinguishes itself by focusing on the fundamental of Information Technology.

"Introduction to Information Technology" is a comprehensive textbook that covers the basics of IT, including hardware, software, networking, and data management. The book provides a clear and concise introduction to the world of IT, making it an ideal resource for students, professionals, and anyone interested in learning about technology.