Remote Desktop Protocol (RDP) is a proprietary protocol developed by Microsoft that enables users to connect to another computer over a network connection. It allows users to access the desktop interface of a remote machine, making it possible to control it as if they were sitting right in front of it. RDP is widely used in business environments for remote administration and support. It provides a secure way to access files and applications from anywhere, enhancing productivity and flexibility for users who need to work remotely or manage servers without being physically present.