Windows is one of the most versatile and flexible operating systems out there, running on a variety of machine architectures and available in multiple SKUs. It currently supports x86, x64, ARM and ARM64 architectures. Windows used to support Itanium, PowerPC, DEC Alpha, and MIPS (wiki entry). In addition, Windows supports a variety of SKUs that run in a multitude of environments; from data centers, laptops, Xbox, phones to embedded IOT devices such as ATM machines.