On 01/15/2014 07:20 PM, Johnny Billquist wrote:
Heh! The DZ-11 is a hog. We all know that.
But the LP11 is not really much better. It's also interrupt per
character unless I remember wrong. But it's only one printer per card,
and no input. And of course, much faster, since it's parallel with
handshaking.
The Unibus controller I used at work, and later at home, with an LA180
was an LS11. I don't remember if it was interrupt-per-character as
well, but since it was fairly non-dense TTL logic, I'd assume it was.
It fared very well on my 11/34 running (at the time) RSX. In the
mid-1980s, I was the first person to turn in high-school homework on
printer paper. Even some of the teachers were asking what kind of
"typewriter" made such "strange-looking print". ;)
-Dave
--
Dave McGuire, AK4HZ
New Kensington, PA