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Article #1495

Re: Brain-damaged Terminal Contest

#1495
From: Carl S. Gutekunst
Date: Fri, 21 Nov 1986 03:10
39 lines
2843 bytes
In article <1140@mordred.cs.purdue.edu> avr@mordred.cs.purdue.edu (Andrew V. Royappa) writes:
>	Don't know about Most brain-damaged, but the BLIT (dmd 5620, AKA
>Bell Labs Intelligent Terminal (I think) -- it should stand for BLAT --
>Bell Labs Annoying Terminal).

The problems you mention are all characteristics of the DMD's "standalone"
mode, which is a stripped-down terminal emulator intended ONLY for the purpose
of booting into something else. Try running the layers window manager, which
is the terminal's normal operating mode, and all your problems will magically
go away. (It has inverse video, underlines, proper handling of ^S/^Q, and no
overrun problems.) 

As it happens, Teletype did take enough flak for the braindamage in the stand-
alone mode that they fixed all these problems anyway, about two years ago. Ask
someone to get you a current set of EPROMs for your terminal.

>	Then again, there are regent100s.

Ah, yes. The LOCAL key transmits to the host. Escape sequences turn into caps
lock if you happen to be holding down the SHIFT key when they arrive. No CAPS
LOCK key to undo the damage. The character generator PROM uses variable width
characters, but displays them fixed width, making many character combinations
unreadable. Sloppy configuration of the display controller limits descenders.
The up and down arrow keys echo locally *and* transmit, but the left and right
arrows only transmit. Any characters that arrive while local echoing is in
progress cause the local echo be repeated anywhere from 10 to 30 times. HOME
is the lower left corner. The backarrow key sends a ^U. There is no back space
key, and you have to shift to get a DEL. They RETURN key on the numeric keypad
sends a comma. The power-on self-test clears the screen to NULs instead of
blanks, and sends a curious encoded string back to the host. ^X causes the
terminal to go into power-on self-test. 

On top of all this, it has the usual annoying quirks of terminals that use
Intel display controllers: magic cookie attributes that make the whole screen
flash when they're used, and curious "graphics."

*NOW* we're talking serious braindamage.  :-)

<csg>
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Path: arc1-ca.pugleaf.net!utzoo!mnetor!seismo!lll-crg!lll-lcc!pyramid!csg
References: <1438@kitty.UUCP> <1140@mordred.cs.purdue.edu>

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Path: arc1-ca.pugleaf.net!utzoo!mnetor!seismo!lll-crg!lll-lcc!pyramid!csg
From: csg@pyramid.UUCP (Carl S. Gutekunst)
Newsgroups: comp.terminals
Subject: Re: Brain-damaged Terminal Contest
Message-ID: <1075@pyramid.UUCP>
Date: Thu, 20-Nov-86 22:10:35 EST
Article-I.D.: pyramid.1075
Posted: Thu Nov 20 22:10:35 1986
Date-Received: Fri, 21-Nov-86 01:56:30 EST
References: <1438@kitty.UUCP> <1140@mordred.cs.purdue.edu>
Reply-To: csg@pyramid.UUCP (Carl S. Gutekunst)
Organization: Pyramid Technology Corp., Mountain View, CA
Lines: 39
Keywords: brain-damage, video display terminals, all-time worst