Information technology is the use of computers to store, retrieve, transmit, and manipulate data, IT is considered to be a subset of information and communications technology . An information technology system is generally an information system, a communications system or, more specifically speaking, a computer system including all hardware, software and peripheral equipment operated by a limited group of users.
Humans have been storing, retrieving, manipulating, and communicating information since the Sumerians in Mesopotamia developed writing in about 3000 BC, but the term information technology in its modern sense first appeared in a 1958 article published in the Harvard Business Review; authors Harold J.
