This new edition of the popular Foundations of Computing book is designed to provide its readers with sound concepts and knowledge of Computers and Information Technology. Its chapters and their contents are chosen carefully to introduce the readers to important concepts in Computer Science (CS). Computer Applications (CA) and Information Technology (IT) through a single book. East chapter addresses fundamental concepts, popular technologies and current state of the art topics. Complete with numerous illustrative diagrams, practical examples, chapter summaries, end of chapter questions and glossary of important terms. It is suitable for use as a textbook for various foundation course taught in Bachelor's, Master's, Diploma and Certificate programs in Computer Science (CS), Computer Applications (CA) and Information Technology (IT). It provides an idea of some such courses offered in BE (CS), BE (IT), B.Tech (CS), B.Tech (IT), BCA, BCS, B.Sc. (IT), MCA, MCS, MCM, M.Sc. (IT), DCA, PGDCA, C-DAC's Diploma Programs, DOEACC Certificate Courses, etc. Textbook Style of Presentation and Lecture notes CD included with the book make it suitable for use as a textbook for such courses. Students and IT Professionals will find it suitable for use as a reference book as well. Candidates preparing for various Entrance Tests and Competitive Examinations will also find it suitable for preparing for potions on CS, CA and IT. The Book covers major concepts and courses in the field, including Foundation of Computers, Database, Data Warehousing and Data Mining , Digital Systems Design, Data Communication and Computer Networks, Computer Architecture, Internet and Web Technology, Algorithms and Data Structures, Information Security, Fundamentals of Programming, Computer Applications and Services, System Analysis and Design, Modern Trends in IT and many more.