• Paper tape and a perforator

s/vim/vi, vim, elvis, .../
s/ed/ed, ex, .../
s/cat/cat, type, .../
[download]

and before starting a flame war, maybe a mor einteresting questing is in what environment the fav editor is used

• scanning writing from paper with ORC
• ascii terminal (vt320, wyse60, televideo, ...)
• terminal emulator under windows
• screen
• X-client under windows
• native X on linux
• native X on mac
• native X using ssh with X forwarding
• ...