Computer is the most important and inseparable part of almost each and every competitive exam now-a-days. The present book has been specially prepared by learned subject-experts keeping in mind the competitions’ point of view. The book is especially useful for the aspirants of various recruitment exams conducted by Banks, UPSC, SSC, PSCs, Railways, Insurance Companies etc., and many entrance exams where a paper on Computer forms an essential part of the exam. The book will definitely prove to be a boon to the competitive exam-aspirants, aspiring students, and inquisitive readers in sharpening their knowledge of Computers and prepare themselves well for a Commendable Success in their respective Exams and Competitions.