Information technology (IT) infrastructure are the components required to operate and manage enterprise IT environments. IT infrastructure can be deployed within a cloud computing system, or within an organization's own facilities.

These components include hardware, software, networking components, an operating system (OS), and data storage, all of which are used to deliver IT services and solutions. IT infrastructure products are available as downloadable software applications that run on top of existing IT resources—like software-defined storage—or as online solutions offered by service providers—like Infrastructure-as-a-Service (IaaS).

What are the components of IT infrastructure?

• Hardware : Hardware includes servers, datacenters, personal computers, routers, switches, and other equipment. The facilities that house, cool, and power a datacenter could also be included as part of the infrastructure.
• Software : Software refers to the applications used by the business, such as web servers, content management systems, and the OS—like Linux®. The OS is responsible for managing system resources and hardware, and makes the connections between all of your software and the physical resources that do the work.
• Networking : Interconnected network components enable network operations, management, and communication between internal and external systems. The network consists of internet connectivity, network enablement, firewalls and security, as well as hardware like routers, switches, and cables.