Twenty first Century is better known as computer century. It would not be exaggeration if we say that no civilized life without computer. Computer revolution has completely changed our life style. It has played a vital role in our routine activities. It facilitates the hour's work in minutes. Internet or e-mailing is like a magic stick that make our contacts possible with the persons living abroad. 'World is small' this has been truly proved by communication revolution. We cannot neglect the role of computers in all the service sectors and corporate world. This is the reason why in various competitive exams computer course has become mandatory. This book is strictly based on latest syllabus of DOEACC. In addition to appropriate study material we have given a number of MCQs and True False related questions. Sample Test Papers and Model Test Papers make us different from other publications on the same line. Wishing you all the best for the exams. - Publisher & Author