MEX (computing)

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MEX (Multiple EXposure) was "Silicon Graphics' original high-performance windowing system" used on early 68k-based IRIS graphical workstations and terminals. MEX was originally loaded over a network through the utilization of GL1 routines kept on a remote host machine, usually a VAX. When the IRIS 1400 workstation and GL2-W (IRIX) were introduced; MEX was allowed to run locally. With the introduction of 4D1-3.0 (IRIX 3.0), and the complete migration to MIPS processors, support for the GL / GL2 powered MEX ended in the late 80s, replaced by Sun Microsystems' NeWS and the 4Sight Window Manager. MEX was used in IRIX from GL2-W2.1.0 - 4D1-2.3.