Man is always after finding ways to ease his physical and mental labour. He succeeded in making machines that could ease his mental labour.Early machines could simply add,subtract,multiply and divide numbers. Computers have got the present form after modifications and refinements that continued through centuries. Modern computers have grown up as the most fast and powerful tool as a result of the technological innovations during the last fifty years. Rapid progress in electronics has made it possible to bring it within the reach of everyone.

we are going to give some lessons for improving your IT knowledge and to get basic idea about hacking.