To get the most out of your digital logic studies, don't just read the text. Digital electronics is a "doing" subject.

Many exams focus on "Universal Gates." Make sure you can build any basic gate using only NAND or only NOR gates. If you’d like more help with your studies, let me know:

If you're looking for information on digital fundamentals or a specific text by V. Vijayendran, I can offer some general guidance on how to approach finding digital fundamentals resources or similar topics:

This book is frequently cited in B.Sc. Electronics Science and Physics syllabi as a core resource for understanding "Digital Electronics and Microprocessors."

Adders, subtractors, multiplexers, and decoders.