- A regular hexagon has Schläfli symbol {6} and can also be constructed as a truncated equilateral triangle, t{3}, which alternates two types of edges.
- Microsoft Windows (allthetropes.org)
Microsoft Windows is a series of operating systems developed by Microsoft since the mid-1980s, and since 1993 have had distinct business & consumer lines (though starting with XP, both lines come from different editions of the same version of Windows, with the exception of server versions)