IT infrastructure refers to the composite hardware, software, network resources and services required for the existence, operation and management of an enterprise IT environment. It allows an organization to deliver IT solutions and services to its employees, partners and/or customers and is usually internal to an organization and deployed within owned facilities

• Hardware: Servers, computers, data centers, switches, hubs and routers, and other equipment
• Software: Enterprise resource planning (ERP), customer relationship management (CRM), productivity applications and more
• Network: Network enablement, internet connectivity, firewall and security
• Meatware: Human users, such as network administrators (NA), developers, designers and end users with access to any IT appliance or service are also part of an IT infrastructure, specifically with the advent of user-centric IT service development.