Microsoft Corp. Select Plus Windows Remote Desktop Srvcs User CAL 2019 License Level D

Remote Desktop Services provides functionality similar to a terminal-based, centralized host, or mainframe, environment in which multiple terminals connect to a host computer. Each terminal provides a conduit for input and output between a user and the host computer. A user can log on at a terminal, and then run applications on the host computer, accessing files, databases, network resources, and so on. Each terminal session is independent, with the host operating system managing conflicts between multiple users contending for shared resources.

Remote Desktop Services enables users to access session-based desktops; virtual machine-based desktops; or applications in the data center from both within a corporate network and from the Internet. Remote Desktop Services helps to securely connect remote users from managed or unmanaged devices.

In the Remote Desktop Services environment, an application runs entirely on the Remote Desktop Session Host (RD Session Host) server (formerly known as a terminal server). The RDC client performs no local processing of application software. The server transmits the graphical user interface to the client. The client transmits the user's input back to the server.