Book Foundation of Information Technology is designed to provide a strong base for students on different aspects of Information Technology (IT) in an easy-to-understand and comprehensive manner. The book strictly conforms to the guidelines and objectives as laid down in the revised syllabus for Class 9 of the CBSE. The main objective of the new syllabus is to encourage the use of open source software, such as Bharat Operating System Solutions (BOSS), the Linux operating system and the OpenOffice (00) suite. Foundation of Information Technology has been written keeping in mind that the reader is a novice in the domain of IT. Consequently, IT fundamentals and concepts are explained from the very elementary level. Moreover, the book is written in such a way that the reader is able to learn on his or her own, without taking the help of an instructor. The book comprises the following 4 In short, we can say that the purpose of writing this book is to accomplish the following To justify the objectives and guidelines of the syllabus for Class 9 on the Foundation of Information Technology as given by the CBSE To encourage the use of open source software, such as GNU/ Linux-based OS and the 00 suite of applications To support the Ministry of Information Technology, Government of India’s initiative to encourage the use of BOSS Linux, which is an Indian version of the GNU/Linux operating system comprising the 00 suite