This immensely useful collection of terms & terminology related to Computer Science in the form of book named ‘Handbook of Computer Science’ is designed as a concise reference also. The book comprises of highly useful information for all readers, who have thirst for knowledge related to this field.Alphabetical arrangement in the book will greatly help readers in quick search of the desired words and terms related to Computer Science. This book deals with all the meaning and definitions explained in a reader-friendly manner. Although there have been many excellent books available on this subject, need for a handbook was being felt for long. This handbook by us is an effort in that direction. We hope this book will prove extremely useful as a reader-reference for the highly advanced subject, i.e., Computer Science.