IT infrastructure refers to the collection of hardware, software, networks, and services that are essential for the operation and management of an organization's IT environment. This includes physical components like servers, computers, and data centers, as well as software applications and network resources that enable communication and data exchange. A well-designed IT infrastructure supports business operations, enhances productivity, and ensures data security. It encompasses various elements such as cloud computing, networking equipment, and database management systems, all working together to provide a reliable and efficient technological foundation for organizations.