WHAT IS INFORMATION TECHNOLOGY?

We use the term information technology or IT to refer to an entire industry. In actuality, information technology is the use of computers and software to manage information. In some companies, this is referred to as Management Information Services (or MIS) or simply as Information Services (or IS). The information technology department of a large company would be responsible for storing information, protecting information, processing the information, transmitting the information as necessary, and later retrieving information as necessary.

Referrences:
http://whatis.techtarget.com/
http://www.entrepreneur.com/encyclopedia/term/82268.html