Windows 3?
I don't know much about the history of computers.
Whether it was a guess or not, you are basically right! The 3.XX series of windows was the first to use it! Ironically all versions of windows up until windows XP SP2 had a fully functional version of it. SP2 removed the file and put a bunk file that just opened a file browser(which can be replaced with a functioning one). Vista doesn't even have that sadly...
I prefer it since its extremely light on resources. Requires alot less than Explorer.
thats it for today's class, hope you took notes! There will be a test!