[net.wanted] VT100 Compatible Terminals

ordy@cwruecmp.UUCP (Greg Ordy) (01/27/84)

	We are looking to get a couple of VT100 compatible terminals
so that we can use the cursor based VMS editor, as well as several
other VMS programs. These terminals require the following characteristics:

	*) Low Cost
	*) are truly compatible (no little quirks)
	*) work with vi and emacs under Unix (full 9600 baud)
	*) no brain damage (i.e. 'magic cookies')

	Things such as green screen and detached keyboard do not matter
at all. Fancy graphics does not matter either.

	I would like to get any opinions on what to purchase. Please
mail me any information. The one terminal that looks good on paper
is the Televideo 970, which can be obtained for $910. I am a bit
scared of Televideo, however, as some of their other terminals (920)
have the 'magic cookie' problem, as well as other brain damage.

	Thanks,
	Greg Ordy
	Usenet: decvax!cwruecmp!ordy
	CSnet: ordy@case

guy@rlgvax.UUCP (Guy Harris) (02/04/84)

> 	We are looking to get a couple of VT100 compatible terminals...
> These terminals require the following characteristics:

	.
	.
	.
	*) no brain damage (i.e. 'magic cookies')

The ANSI X3.64 standard, which the VT100 adheres to, in effect says that
magic cookies do not exist; any terminal with magic cookies can't be X3.64
compatible.  (Furthermore, they can't even put the magic cookie in the
display memory and not show it on the screen; they *must* implement the
screen image so that it appears to the program talking to the terminal as
if each screen position had a character and an attribute set, and that any
character put on the screen gets the "current" attributes which are set by
the SGR sequence.)  As such, if the TeleVideo 970 has magic cookies, it's
blatantly not VT100 compatible and not even X3.64 compatible, and they
would probably not sell any after they were found out.  I suspect you're
safe if they claim VT100 compatiblility - however, the C. Itoh CIT-101 has
a non-VT100 compatible printer port, which they had *no excuse* doing since
there is a spec for an auxiliary output port in X3.64.  First Datamedia used
it, *then* DEC put a printer port on the VT100 - but both implementations
were compatible because they were both based on X3.64.

	Guy Harris
	{seismo,ihnp4,allegra}!rlgvax!guy

mab@bnl.UUCP (Michael A. Bloom) (02/15/84)

Watch out!  I've seen a number of so-called VT100 compatibles which
are near useless with EMACS.  A common firmware shortcut seems to
be for the terminal to behave as though you pressed the SCROLL
key when you have in fact pressed C-S.  This is extremely frustrating
to someone who likes making use of C-S and C-X C-S.  The real VT100
does not present this problem.
-- 

Michael A. Bloom	..!bnl!mab  or mcb@mit-mc.arpa or mab@bnl