All of the dominant commercial operating systems in desktop and mobile computing — macOS, iOS, Windows, Android, Chrome OS — are made in the US, on the West Coast. Except for Microsoft, they are heavily concentrated in the SF Bay Area. (Note that I am not talking about free software such as GNU/Linux, BSD, etc., which is probably more diverse regarding the location of their developers.) Flight Tracking All of these OSes are very eager to support you with flight tickets and boarding passes.
