Education is a lifelong journey for every person. A person experiences most of his education through schools. After the invention of computers, the world has become a global village. Education system in India is facing increasing pressure to use innovative methodologies and integrate new Information and Communication Technologies in the teaching and learning process. Students, have the opportunity to learn lessons through e- portals offering education. The computer has a vital role to play in the field of education. It forms the base for learning other subjects also. Today, computers are used in houses, schools, offices, factories, companies and many other places. Every individual should know atleast the basics of computer. It is essential that, the awareness of computer skills should be promoted among the students, so that they can keep abreast with the time and gain proficiency in using computers for widening their knowledge. So it is essential that, the awareness levels should be assessed in order to give them proper training in using the computer for educational advancement. The main aim of the study was to measure the computer knowledge of higher secondary school students, to find out the level of computer knowledge among XI students and to impart the computer knowledge at lower level. The main objective of the study is to assess the computer knowledge of the higher secondary school students, to measure the level of computer knowledge of higher secondary school students in Coimbatore district, in Tamilnadu, India. So the study was conducted at 7 schools that follows Tamilnadu State Board syllabus (SamacheerKalvi) randomly selected for the study. The research was carried out with a survey method of questionnaire tool constructed based on the curriculum of the XI standard students.