The Free On-line Dictionary of Computing (19 January 2023):

Tk

    A GUI library, generally used with
   TCL by John Ousterhout, but also available from within C
   or Perl.  Tk is available for X Window System, Microsoft
   Windows and Macintosh.  Tk looks very similar to Motif.

   Version 3.5.

   (ftp://ftp.cs.berkeley.edu/ucb/tcl/).

   (1995-11-09)


The Free On-line Dictionary of Computing (19 January 2023):

tk

    The country code for Tokelau.

   (1999-01-27)