- In geometry, a cube or regular hexahedron is a three-dimensional solid object bounded by six congruent square faces, a type of polyhedron. It has twelve congruent edges and eight vertices. It is a type of parallelepiped, with pairs of parallel opposite faces, and more specifically a rhombohedron, with congruent edges, and a rectangular cuboid, with right angles between pairs of intersecting faces and pairs of intersecting edges. It is an example of many classes of polyhedra: Platonic solid, regular polyhedron, parallelohedron, zonohedron, and plesiohedron. The dual polyhedron of a cube is the regular octahedron.
- 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)