IT infrastructure

Updated: 03/06/2020 by Computer Hope
Administrator working in a server room.

IT infrastructure is the setup and installation of a facility's hardware, software, and network required for a business to operate.

Today, many companies are moving their IT (information technology) infrastructure to the cloud with IaaS (Infrastructure-as-a-service) or PaaS (Platform as a Service). See our PaaS page for further information.

IT infrastructure components

IT infrastructure consists of many or all of the following components.



  • Business applications
  • CRM (customer relationship management)
  • ERP (enterprise resource planning)
  • Operating systems


Business terms, Enterprise, IT, Network terms