You are right, as from a design perspective, Windows was based on Mac OS. What I meant was that the first versions of Windows were built on DOS: https://www.qu

You are right, as from a design perspective, Windows was based on Mac OS. What I meant was that the first versions of Windows were built on DOS: https://www.quora.com/Is-Windows-still-based-on-DOS https://www.quora.com/Is-Windows-still-based-on-DOS