Information technology infrastructure is the integrated framework upon which digital networks operate. This infrastructure includes data centers, computers, computer networks, Database Management devices, software, services and a regulatory system.
In information technology, and on the Internet, infrastructure is the physical hardware used to interconnect computers and users. Infrastructure includes the transmission media, including telephone lines, cable television lines, and satellites and antennas, and also the routers that transfer data between disparate transmission technologies.
In some usages, infrastructure refers to interconnecting hardware and software and not to computers and other devices that are interconnected. However, to some information technology users, infrastructure is viewed as everything that supports the flow and processing of information.
Infrastructure companies play a significant role in evolving the Internet. They influence where the interconnections are placed, where data is made accessible, and also how much information can be carried, and how quickly.