This book will be useful of all those who are preparing for interviews and various competitive examinations, where the most basic and also in-depth understanding of computers is required. The book is divided in three parts??? Fundamental???Cover basic questions on computers from day to day awareness of computers. Application???Cover questions related to computer applications, it includes Windows Operating System and Keyboard Shortcuts, Microsoft Office, Microsoft Word, PowerPoint, Access and Excel. Advance???Covers questions on advance topics on computer, it includes Operating system, Software Engineering, Data Structures and Algorithms, Electronics Data Processing, Data Mining and Data ware house, Parallel Computing and Window Programming, Data Base Management Systems. Author hopes that this book will fulfill the needs of those who are in search of relevant questions on computers.