Re: Line editor without echo...
The thing only had a line editor that made MS-DOS edlin look like a state of the art WYSIWYG editor!
Okay, so it had Vi.
Want to delete the 25th charcter on the line? 24 x space, "d", Enter.
Insert something? Space out to where you want to insert, i, text, Enter.
Yeah, you said. It had Vi.
/me scuttles off to find a bunker...