PET 2001 - test-drb@ccmp.vtda.org

8 Jul 1998

On Jul 8, 19:01, Philip.Belben(a)powertech.co.uk wrote:
...
  I've never heard of 2001NT. 
I have, but I don't think I've seen one.  Unless it's actually identical to
another model :-)

...
  AFAIK, N = Non business keyboard.  The top row of keys
was !"#$%^&'()
 like the tiny keyboard machines - numbers were only on the number pad.

 B = Business keyboard.  Top row of keys was 1234567890, shift gave you
 !"# etc.  This meant you couldn't get some of the "graphics"
characters
 that came from shift-! etc. 
That refreshes my memory.  There's a POKE to get the graophics but the
default is as described.

...
  Nor do I.  All 2001 PETs had 9 inch screens. 
That's what I thought, but I didn't want to be to dogmatic (just for a
change :-))

...
  > cassette-beside-the-keyboard.  I've got one
here.  And the /B and /N series
...
  > were called 3000's not 2001 everywhere except
the USA.  The 12" versions
...

 Are you sure?  I thought the 2001-8N and 2001-8B got renamed 3008 a bit
 later. 
Not absolutely sure, but around that time the local authority was buying a
lot of PETs and I never saw a 3000 less than 16K, and never saw a
business-keyboard 2001.

...
  > didn't appear in the UK until later. 
According to my (USA) manual, the
 > 2001/B (aka 3000 here) was a 9" screen too.  IIRC, the 4000 was the
first
...
  > with a 12" screen, at least in the UK (USA
might easily be different, of
...
  > course), and that's borne out by my manuals. 
The 12" screen version was
...
   eventually
called the 8000 series here, and had different firmware (and
 up to 96K RAM I think, bank-switched). 
 Um.  The first with the 12 inch screen was the 8032.  Different firmware
 and re-done video circuitry.  Later some of that was put into 4032,
 making the "fat 40"  Bank switched RAM made an 8096... 
Hmm, that does sound more likely.  Come to think of it, the 8000 were the
fiorst I saw with a 12" screen as well.

...
  > One of the differences between the business and
home versions (apart from
...
   graphics
symbols on the keytops) was whether the machine powered up in
 upper- or lower-case. 
 Was it?  That's weird! 
Yes :-)

...
  Even weirder, though, was the lower case
implementation. [ snip ]
...
  Confused?  It is, isn't it! 
I remember it caused som amusement with non_PET printers.

...
  IEEE-488 to RS232 converters were very popular here,
since PET had no serial
...
  port.  Alternatively, software could be written to
drive a pin on the user port
...
  serially.  I know.  I've done it. 
I've done that too.  And there were a few serial converters, as Philip
says.

-- 

Pete						Peter Turnbull
						Dept. of Computer Science
						University of York