Hello Vimal,

Information Technology is the use of computers and software to manage the information. Computers play the important role in information technology. We can say IT is a technology to maximize the efficiency and production and improves the working efficiency. Information technology is a rapidly growing field that offers secure positions for individuals with a minimum of a bachelor's degree in an IT-related field. 
The field of information technology, or IT, covers the support, administration, and design of telecommunications and computer systems. Some positions in this field include system analysts, software programmers, computer scientists, computer support specialists, and network and database administrators. Hope it helps you 

Thank you