A popular window system developed by MIT and implemented on a number of workstations.
X.25
A CCITT standard that defines the packet format for data transfers. An old network technology.
X/Open
A group of computer manufacturers that promotes the development of portable applications based on Unix. They publish a document called the X/Open Portability Guide.
XBM
X11 monochrome BitMap format
XCVR
Transceiver, used to describe a kind of circuit pack that can be installed in Movaz equipment.
XDR
eXternal Data Representation. A standard for machine-independent data structures developed by Sun Microsystems.
XENPAK
A module like a GBIC that plugs into a XENPAK port to support different kinds of 10Gigabit Ethernet connectors. Cisco sells SR (short range, 26 meters, FDDI style), LR (long range, 10 kilometers, single-mode fiber) and ER (extended range, 40 kilometers, single-mode fiber) XENPAKs.
XML
eXtensible Markup Language
XNS
Xerox Network System, a protocol often used to drive Xerox printers.
XP
eXtreme Programming
XPM
X11 color PixMap format
XWD
X11 Window Dump
Xylogics
A company that makes terminal servers used by NCAR.