Information Technology (IT) refers to the use, development, and management of computer systems, software, and networks to store, process, transmit, and retrieve information. It plays a crucial role in various aspects of modern society and business.

Hardware: This includes physical devices such as computers, servers, routers, switches, and other equipment used for processing and storing data.
Software: IT involves the creation and management of software applications and systems. This includes operating systems, applications, databases, and programming languages.