X terminal

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• X端末
• X-terminal

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A Network Computing Devices NCD-88k X terminal.

An X server runs on the X terminal, connecting to a central computer running an X display manager. In this example, client programs (xterm and xedit) are running on the same computer.

In computing, an X terminal is a thin client used to display X Window System applications. X terminals enjoyed a period of popularity in the early 1990s when they offered a lower total cost of ownership alternative to a full Unix workstation.

The X terminal runs an X server. (In X, the usage of "client" and "server" is from the viewpoint of the programs: the X server supplies a screen, keyboard and mouse to client programs.) This connects to an X display manager (introduced in X11R3) running on a central machine, using XDMCP (X Display Manager Control Protocol, introduced in X11R4).^[1]

Today, thin clients often have the ability to "speak" a range of remote desktop protocols, including X (due to the existence of free software implementations of multiple protocols); thus, the dedicated X terminal has been commercially obsoleted by more general-purpose thin clients, including PCs running X server software.

See also

• HP X-Terminals

References

1. ^ Linda Mui and Eric Pearce, X Window System Volume 8: X Window System Administrator's Guide for X11 Release 4 and Release 5, 3rd edition (O'Reilly and Associates, July 1993; softcover ISBN 0-937175-83-8)

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