Information Technology (IT) is a business sector that deals with IT, including hardware, software, telecommunications and generally  everything that is involved in the transmission of information or systems that facilitate communication. IT is widely used in the context of business operations as opposed to personal or entertainment technologies. An information technology system (computer system) is usually an information system, a communication system or, more precisely, a computer system - including all hardware, software and peripheral equipment - operated by a limited group of users. In the digital age, the role of the computer and its complementary applications is bursting, resulting in the emergence of many new computer companies