Microsoft Network on Premises refers to the traditional approach of setting up and managing computer networks within an organization's physical location or premises. This involves installing and configuring the necessary hardware and software components, such as servers, routers, switches, and firewalls, to create a local area network (LAN) that allows users to share resources and access network services.

With a network on premises, organizations have complete control over their network infrastructure and can customize it to meet their specific needs. This includes managing access control and security, configuring network protocols and services, and ensuring that the network is reliable and available for users.