Looks like it's "File System Navigator" or fsn (fusion) https://web.archive.org/web/20160416092919/https://en.wikipedia.org/wiki/Fsn https://web.archive.org/we

Looks like it's "File System Navigator" or fsn (fusion) https://web.archive.org/web/20160416092919/https://en.wikipedia.org/wiki/Fsn https://web.archive.org/web/20160416092919/https://en.wikipe... Since removed, but still mentioned here: https://en.wikipedia.org/wiki/Graphical_user_interface#In_science_fiction https://en.wikipedia.org/wiki/Graphical_user_interface#In_sc...