Information Technology – A Definition:

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 Managemen 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.