It includes Chapter wise theories, question Bank with each Chapter, Chapter wise past years’ Questions and 5 Practice Sets for complete practice. Abbreviations and Glossary are also given at the end. Providing to-the-point, chapter wise study supported by definitions, examples, exercises and more, it promotes the best learning along with revision and practice to perform well in exams. Toc introduction to Computer, computer architecture, computer hardware, computer memory, data representation, computer software, operating system, programming concepts, Microsoft Windows, Microsoft Office, database concepts, Internet and its services, computer security, practice sets (1-5), abbreviations, glossary.