We welcome the readers to the very dynamic fields of Computer Science and Engineering (CSE) as well as Information and Communication Technology (ICT). ICT incorporates computers, electronic communications and the Internet as well as the various services and applications of computers and communications for numero computer the other hand, Computer Science and Engineering mainly focuses on computer hardware, software and creating applications of computers.

This book is mainly based on the authors' classroom experience. Clear and friendly texts, simple and step-by-step presentations of topics aid easy comprehension of the subject matter. With all the latest information and several key pedagogical attributes, the book is an invaluable learning tool for the students of engineering, technology, natural sciences, business, social sciences, arts and humanity. The book covers basic ideas of computers. hardware, software, computer networks, information security, computer graphics, ICT and social networking.

Approach

The book, "Computer Fundamentals and ICT", covers two fundamental issues: computer fundamentals with applications, and ICT with social networking. Readers of different disciplines will learn fundamentals of computers and hardware components, fundamentals of software engineering, common application software, networking principle, elementary network security threats with protection, ICT services and applications and social networking.

Organization The book consists of 22 chapters. Chapter 1 focuses on the basic components of a computer,

its classification, applications and ICT fundamentals. Chapter 2 includes number systems and codes, and Chapter 3 covers fundamentals of digital logic, shift registers and counters. Microcomputer and its organization and architecture are included in Chapter 4 while Chapter 5 covers mostly used input and output devices. Chapter 6 covers microprocessors, arithmetic logic unit and the evolution of microprocessors. Memory and storage devices are included in Chapter 7. Introduction to software with classification, basics of programming languages, application packages are discussed in Chapter 8. System software and basics of software development are covered in Chapter 9 and 10 respectively. Chapter 11 focuses on popular word processors with their features and desktop publishing. Chapter 12 includes worksheets and working with formulas and macros. Database and database management systems are presented in Chapter 13. The presentation packages and programming language Care discussed in Chapters 14 and 15 respectively. Chapter 16 includes the basics of computer networks, and Chapter 17 covers Internet services and protocols. Chapter 18 includes Graphics and Multimedia, and Chapter 19 discusses computer and information security. Chapter 20 includes E-Commerce and E-Governance. Information systems, social networking and mobile apps are covered in Chapters 21 and 22.

[4:41 PM, 5/20/2024] +880 1608-753220: Instructor's Resources

Instructor's teaching material has been prepared to assist teaching with the book. This material includes power point presentations for each lesson, which are available at www.digitalready.co.uk. The website is regularly updated with new features and contents.

Acknowledgments

Without the support of many people and web-resources, it would have been impossible to develop this book. We are grateful to the authors and publishers of the resources. We would like to acknowledge the contributions of Shamim Al Mamum, Nusrat Zenia and Fariha Afsana of Jahangirnagar University, and Syed Nazmus Sakib of Institute of Energy. University of Dhaka for reviewing some materials of the book.

Our thanks go to a number of people of Daffodil International University (DIU). We are grateful to Professor Dr. Yusuf Mahbubul Islam, Vice Chancellor, Dr. S.M. Mahbub Ul Haque Majumder, Pro-Vice Chancellor, Professor Dr. Engr. A. K. M. Fazlul Hoque, Registrar, Mr. Mohamed Emran Hossain, Director of Administration, and Dr. Md. Milan Khan, Librarian and Director of DIU Press for their help and cooperation. Special thanks are for Mr. Md. Sabur Khan, Chairman, Board of Trustees of DIU for his enthusiasm and encouragement for publication of the book from the DIU Press.

Last and most obviously not the least, is the brace of our friends and families who really supported us during the preparation of the manuscript. We are sure that they will be happy to see the published work and feel that their sacrifice is worth it. We are grateful to them.