In principle, a terminal server is a computer on which several users can work simultaneously while their screens can be displayed remotely. Windows Server 2003 in combination with Terminal Services opens up a migration path from a host environment to a more up-to-date environment. One secondary benefit of Terminal Services is the ability to eliminate so-called dumb terminals that are still in use at many companies. It can replace or augment the Microsoft Systems Management Server and extends Windows capabilities, especially in large companies. Moreover, Terminal Services under Windows Server 2003 provides a powerful option for distributing and updating software. By centralizing applications, the technology significantly reduces operating costs, especially in large corporate environments. To function properly, the applications must be able to run as is on Windows Server 2003 with Terminal Services enabled for application servers. The primary design objective of Terminal Services was the display of many kinds of Microsoft Windows–based applications on multiple hardware platforms. Maximum main memory supported (32-bit/64-bit versions) Terminal Services for application servers Table 1.1: Functions and System Requirements of Different Server Products (Enterprise Server and Datacenter Server Are Available in Both 32-Bit and 64-Bit Versions) It also includes functions such as Remote Desktop to transfer the graphical user interface (GUI) to a remote computer for administration purposes, as well as the session directory to manage user sessions in server environments with capacity allocation mechanisms. The following table lists important features of various server types. Which server types support Terminal Services? For application servers, Terminal Services is provided with the Standard Server, Enterprise Server, and Datacenter Server. Applications are executed and data processed exclusively on the server. It allows end-user applications or several Windows desktops to be used on different clients connected via a network. The Microsoft Windows Server 2003 product line includes Terminal Services, an optional extension of the operating system.
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