X terminal

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.

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][page needed] Thin clients have somewhat supplanted X terminals in that they are equipped with added flash memory and software for communication with remote desktop protocols.

In the early 1990s, several vendors introduced X terminals including HP, DEC (including the VT1000 series), IBM, Samsung, NCD, Gipsi,[2] Tektronix,[3] and Visual Technology.

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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.