Computer Fundamentals & Terminology: A Student Guide to Computers, IT, Cybersecurity, and Artificial Intelligence

Understand the technology you use every day—and learn to speak its language with confidence.

Computers, networks, cybersecurity, cloud computing, and artificial intelligence are part of everyday life. But understanding how these technologies actually work—and learning the terminology used by IT professionals—can feel overwhelming.

Computer Fundamentals & Terminology is a practical, easy-to-follow learning guide designed for high school students, introductory college students, and anyone beginning their journey into information technology.

Written by Santhosh Sivarajan, a published author, longtime Microsoft MVP, and cybersecurity and identity practitioner, this book connects essential computer concepts with everyday situations, real-world examples, and practical learning activities.

What You Will Learn

• Computer Fundamentals: The evolution of computers, hardware, processors, memory, storage, and operating systems.

• Software and Programming: Applications, programming concepts, algorithms, databases, and software development.

• Networking and Cloud Computing: How networks, the Internet, websites, APIs, and cloud services work together.

• Cybersecurity and Digital Identity: Security principles, authentication, access management, encryption, privacy, and digital trust.

• Artificial Intelligence: Machine learning, generative AI, large language models, AI agents, automation, and responsible AI.

• Technology Careers: Professional skills, practical projects, and opportunities for continued learning.

Designed for Understanding, Not Just Memorization

Each chapter introduces important concepts in clear language and reinforces them through terminology definitions, comparisons, realistic scenarios, review questions, and practical exercises.

Whether you are preparing for a computer science course, exploring an IT career, or simply trying to understand the technology around you, this book provides a structured foundation for continued learning.

Ideal for high school students, introductory college students, educators, homeschool families, and beginning technology learners.