- The book is according to the syllabus of Board of Technical Education Rajasthan, Jodhpur
- A computer is an electronic machine that accepts data, stores and processes data into information. The computer is able to work because there are instructions in its memory directing it.
- The parts of the computer that you can see and touch, such as the keyboard, monitor and the mouse are called hardware. The instructions that direct the computer are called software or computer program.
- Data which is raw facts that you the user enter into the computer is called input. This includes; words, numbers, sound, and pictures. When the data is entered into the computer, the computer processes the data to produce information which is output.