Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: utzoo!utgpu!water!pabuhr From: pabuhr@water.UUCP Newsgroups: comp.emacs Subject: Half Duplex Editor Message-ID: <1026@water.UUCP> Date: Tue, 7-Jul-87 07:57:19 EDT Article-I.D.: water.1026 Posted: Tue Jul 7 07:57:19 1987 Date-Received: Thu, 9-Jul-87 00:38:33 EDT Reply-To: pabuhr@water.UUCP () Distribution: world Organization: U. of Waterloo, Ontario Lines: 31 > Article 1238 of comp.emacs: > Path: water!watmath!clyde!rutgers!ames!ucbcad!ucbvax!LF-SERVER-2.BBN.COM!jr > From: jr@LF-SERVER-2.BBN.COM (John Robinson) > Newsgroups: comp.emacs > Subject: Re: 9600 baud problems (was Re: when using termcap, get it right!) > Date: 6 Jul 87 15:22:59 GMT > Sender: daemon@ucbvax.BERKELEY.EDU > ... > I wonder if anyone has ever made an intensely interactive application > like emacs work over a half-duplex line! I am not sure if this is actually what you were are looking for, but at the University of Manitoba (Canada), they modified the rom code for a DT80 terminal to support a powerful full screen editor at half-duplex. The terminal was a line based editor, that is, you could make changes to a line on the screen and when you moved off the line it would be transmitted to the host for insertion in the file. It was not as powerful as Emacs (but not that far away either) and considering it was half-duplex and connected to an Amdahl mainframe, it was pretty impressive. As well, it had most of the operations on the number pad by being able to use the shift key with each number pad key. Each number pad key had a function (eg. next word) and shift that key usually did the reverse (eg. previous word). With fingers on the function pad and thumb on the shift key, it was possible to perform editing operations very quickly. If you would like more information I suggest you contact either: Eugene Reimer : ereimer@UOFMCC.bitnet Bill Reid : reid@UOFMCC.bitnet They have some documentation that they might be willing to send you.