26 Mar
2002
26 Mar
'02
11:48 a.m.
We used to have one of these down at Georgia Tech, in the computing center.
The nice thing about was that most people didn't understand the use of the
'Clear' key to clear the screen. As a result, people would logon, discover
that after a page full the characters start overwriting each other (the
terminal doesn't support scrolling), get disgusted, log off, and never it
again.
As a result, it meant that for those of us in the know, we always had a
terminal availabel in the cluster. Same was true of the teletypes, until
they were replaced.
I wrote a Pascal based turtle graphics program for the 4051, running on the
Cyber. That was fun.
--John
-----Original Message-----
From: owner-classiccmp(a)classiccmp.org
[mailto:owner-classiccmp@classiccmp.org]On Behalf Of Don Maslin
Sent: Tuesday, March 26, 2002 20:07 PM
To: classiccmp(a)classiccmp.org
Subject: Re: ancient terminals, was: Re: ZX-81 Question
On Tue, 26 Mar 2002, Joe wrote:
At 05:58 PM 3/26/02 +0100, you wrote:
Do you mean 4051?
- don
On 2002.03.26 12:55 Hans Franke wrote:
If you think that's strange you should have seen the Tektronix 8051 This construction reminded me of
1970 style 'inteligent' terminals where screen buffer was more like a
code of some sort to be executed by the diplay processor which was a
micro code engine itself.
And that reminds me of the Tektronix ASCII Terminal I
rescued lately.
Characters are drawn only once and the analog "memory" display tube
keeps the dots fluoresceing. No screen refresh! This is one of the
Terminals where you can see that Tektronix is well known for
oscilloscopes... computer. It also used a storage tube for a CRT!
You had to
periodicly press an Erase button to clear the screen!!
Joe