At 17:19 17/03/2006, Richard wrote: I worked at Ferranti Computer Systems back in the early '80s, (as an apprentice, so I didn't have a lot of access..) and there was some very odd terminals in use for the fire brigade/police systems we made, and also in use for the internal stock system. They worked very like html forms do today - the server sent a screen image and a pile of input fields, you could mess about filling them in as much as you liked, and then you hit a "send" button on the keyboard. From seeing a whole line of them on desks during a testing session, I am fairly sure they were not normal point-to-point RS232 serial links like the VT100's we had on the VAX systems, but some sort of loop or daisy chain.. Unfortunately, after 20+ years my memory is a little rusty about that aspect.. (aside: I do remember there was some sort of adventure game on at least one of the police systems that operators could swap out into - I saw it when out at Bradford once.. ) Rob