X Input Method
The X Input Method (XIM) was the original input method framework for the X Window System. It predates IBus, SCIM, uim and IIIMF. The specification is copyrighted 1993,1994.
...
Wikipedia
The X Input Method (XIM) was the original input method framework for the X Window System. It predates IBus, SCIM, uim and IIIMF. The specification is copyrighted 1993,1994.