22 Jun
2009
22 Jun
'09
11:19 a.m.
And then
there's the attributesm which are set on a character line basis.
Basically, every character is either normal or enhanced (decided by bit 7
of the chracter code). You can only have one type of enhancement in a
given line. So you could have normal and underlined characters in the
same line, but you can't have normal, inverse, and underlined characters
all in the same line.
Okay, I'll grant you that was a bit weird. Honestly, though, it was
never an issue for me, or the original owner. I don't know how 'official' it was, but I
had PORTSET.COM which directly
That's not on the standard CP/M boot disk, and I can find no reference to
it in any of the manuals on hpmuseum.net.
set up the serial port from the CP/M side. Er, it RAN
on the CP/M side,
and set up the ports.
I suspect it did downlaod something to the terminal processor. But
obviously I can't be sure
I'd much rather have an HP9000/200....
An attorney's office near me had the HP-125. When they upgraded, I got
their old system for a song. Nobody I knew was getting rid of an
HP9000/200. This was before eBay, and I really didn't have a good way
to find specific equipment. One takes what's available. Still and all,
I very much enjoyed using it, and it was the first machine I had that
would be a reasonable terminal, HPIB controller, AND general purpose
computer. Also, they were SLEEK. So, scoff if you want, but I liked it just fine. It probably would have been more difficult
than average to
repair hardware problems on it, but in about 15 years, I never had one.
I don't see why. Getting some of the chips might be hard now, but apart
from that it's not too bad. The design is
understnadable, it can be
debugged in the normal way.
FWIW, Mine fired up with no problems. OK, I had to make a keyboard for it
(not a normal problem if you got one new...), I had to repair the cooling
fan, and I had to change one capacitor on the PSU board -- it seemed OK,
but the top was bluging. Since it was one of the mains smoothing
capacitors, and since if it had burst it would have gone straight towards
the CRT neck, I replaced it.
-tony