5 Dec
2007
5 Dec
'07
2:18 p.m.
Subject: Re: Hazeltine 1200
From: Mr Ian Primus <ian_primus at yahoo.com>
Date: Wed, 05 Dec 2007 11:43:14 -0800 (PST)
To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at
classiccmp.org>
--- Sridhar Ayengar <ploopster at gmail.com> wrote:
The 14xx and 15xx are late 70s (after 1976) as 1500 used
8080 and the 1400 used 8048 cpus.
My father just rescued a Hazeltine 1200 from a
scrapheap for me. I know
nothing about these. Could someone give me some
pointers to
information? Thanks.
Peace... Sridhar
Nice! I don't know anything about the 1200, but I have
a 1500 and a 1421. They are both just simple
terminals, with some fairly basic control functions
What does it look like? Is the keyboard integral or
detatched? Does it look like the 1500/1400 series? - http://vt100.net/manx/covers/14/hi-1056a.png.
Now, if it looks like the 2000, you've got a great
score. Those are some interesting beasts. I've never
seen one, but they look like this.
http://www.columbia.edu/acis/history/h2000s.gif
The Hazeltine 2000 was a very early video terminal
(circa 1972).
The 1200 was a basically glass tty, all uppercase
(may have had a back pannel option for all upper
tty mode or mixed) it was capable of slow baud rates
(I think to 1200 or 4800) and both RS232 or current
loop. I used on on the DEC PDP10 so that means it
was in house there by spring 1972. It was all logic
no cpu used and I belive it used serial PMOS shift
registers for storage.
Allison
-Ian
6 Dec
6 Dec
7:09 a.m.
Allison wrote:
The 14xx and 15xx are late 70s (after 1976) as 1500 used
8080 and the 1400 used 8048 cpus.
Interesting. 8048 is an integrated microcontroller, no?
Wow. Neato!
Peace... Sridhar
My father just rescued a Hazeltine 1200 from a
scrapheap for me. I know
nothing about these. Could someone give me some
pointers to
information? Thanks.
Nice! I don't know anything about the 1200, but I have
a 1500 and a 1421. They are both just simple
terminals, with some fairly basic control functions
What does it look like? Is the keyboard integral or
detatched? Does it look like the 1500/1400 series? -
http://vt100.net/manx/covers/14/hi-1056a.png.
Now, if it looks like the 2000, you've got a great
score. Those are some interesting beasts. I've never
seen one, but they look like this.
http://www.columbia.edu/acis/history/h2000s.gif
The Hazeltine 2000 was a very early video terminal
(circa 1972).
The 1200 was a basically glass tty, all uppercase
(may have had a back pannel option for all upper
tty mode or mixed) it was capable of slow baud rates
(I think to 1200 or 4800) and both RS232 or current
loop. I used on on the DEC PDP10 so that means it
was in house there by spring 1972. It was all logic
no cpu used and I belive it used serial PMOS shift
registers for storage. 
7:33 a.m.
On Dec 6, 2007, at 10:09 AM, Sridhar Ayengar wrote:
The 14xx and 15xx are late
70s (after 1976) as 1500 used
8080 and the 1400 used 8048 cpus.
Interesting. 8048 is an integrated microcontroller, no?
Yes it is; sorta a predecessor to the 8051 family.
-Dave
--
Dave McGuire
Port Charlotte, FL
Farewell Ophelia, 9/22/1991 - 7/25/2007
My father just
rescued a Hazeltine 1200 from a
scrapheap for me. I know nothing about these. Could someone
give me some
pointers to information? Thanks.
Nice! I don't know anything about the 1200, but I have
a 1500 and a 1421. They are both just simple
terminals, with some fairly basic control functions
What does it look like? Is the keyboard integral or
detatched? Does it look like the 1500/1400 series? -
6226
days inactive
6227
days old
2 comments
3 participants
participants (3)
-
ajp166＠bellatlantic.net -
mcguire＠neurotica.com -
ploopster＠gmail.com