Cephas Zulu is a lecturer with a Master's degree in telecommunications and computing. He has extensive experience in electronics, telecommunications, computing, and teaching. Previously he has worked for Zamtel and lectured in the UK. Currently he is a lecturer at Livingstone International University. The textbook covers the Zambian Computer Studies Syllabus from basic electronics and logic gates to programming in HTML and Pascal. It also discusses different types of computers, networks, and their applications in areas like e-banking, e-commerce, and more. The book is designed to help students learn with objectives, case studies, activities, exercises and discussion questions to apply the knowledge to real world examples.