Something similar happened to me when I ran an Apple II emulator for the first time. Even though it had been years since I last used a real Apple //c, seeing the prompt in the correct font with the cursor blink at the exact right tempo rewired my brain on the fly and I was typing commands and writing BASIC programs almost immediately.
I still fire it up occasionally to play through my old games and look at my old programs. Nostalgia is a powerful thing.
I could use the basic functions of Edlin back then, when I was 7 or 8, but I have absolutely no idea how to do anything with it anymore. I'd have to look it up.
Totally recognized the grandparent post's prompt $p$g though.
Wow, this is awesome! How can I upload original disk images? Can we get an 8086 emulator with VGA? I would love to have all of my old games & software available in the browser. (Scorched Earth, Infocom, Sierra, etc.)
Ah okay the keyboard was only broken in firefox but it works in chrome.
My instinct immediately made me type prompt $p$g from something buried keep in my memory!
Basic works and you can make a program within a program within a browser. Ha.