It includes all computer fundamentals concepts that are explained with the help of diagrams. It includes details of working of some of the operating systems like MS-Windows, MS-DOS. It also provides a brief description of various application software like Word Processor, Presentation Software, Spreadsheet.  It contains the following chapters :

1. Introduction

2. Basics Of Computer

3. Number System

4. Operating System

5. MS-Dos

6. MS Windows

7. Input, Output, Memory And Processing Devices

8. Networks And Its Concepts

9. Internet

10. Word Processor

11. Spreadsheet

12. Presentation Software

13. Cyber Security