http://gizmodo.com/windows-10-may-have-gotten-its-name-because-of-lazy-cod-1641383218
It's a y2k sort of problem, where programmers either didn't think the Windows naming scheme could ever generate another "Windows 9x" version, or didn't want to bother future-proofing their code to control for it.
이전에 있던 윈도우9x 와 코드가 혼동되는 일이 없도록 저렇게 했다고 하는데...진짜일까...