An operating system most notably on mobile phones, but also found on media boxes.
Fundamentally flawed - It is tethered to Google in as many ways as they've made possible. From a time server, to internet traffic compression. From google play requiring an account requiring your verified phone number. From hoops to download and install software from their store. It's fucking awful.
This is just a placeholder page for notes that may or may not work in later versions of Windows.
It's what's underneath iOS (on iPhones).
AKA Berkeley Software Distribution