28 Mar
2005
28 Mar
'05
6:30 p.m.
2114's top out at 8 K words.
As far as I can tell, there never was a 2114C shipped. Both A's and B's
came stock
with 4K, and 8K was an option ( very common on the B's).
Also 2114A's don't have DMA, but B's do, but only a single channel.
----- Original Message -----
From: "Eric Smith" <eric at brouhaha.com>
To: "General Discussion: On-Topic and Off-Topic Posts"
<cctalk at classiccmp.org>
Sent: Sunday, March 27, 2005 10:39 PM
Subject: Re: another hp2100 wannabe
I wrote about HP 2000 Time Shared BASIC:
2000A only uses a single CPU, as did 2000B and
2000E.
Jay wrote:
Actually, 2000A and 2000E were the single cpu
versions. 2000B was
definitely a dual cpu configuration, sold at least initially on a 2116
for the main cpu and a 2114 for the "I/O processor".
Oops, you're right. My own web page has the correct info, but my
memory is terrible.
Tim wrote:
>> Perhaps it could have been an hp-2114c
running ACCESS 2000E?
I wrote:
> I'm not sure whether 2000E would run on a
2114
and Jay wrote:
I'm not sure 2000E would run on a 2114. It
just might.
Now that I think about it more, I'm fairly certain that it won't,
because 2000E (and 2000F and 2000/Access) require the floating point
microcode that is not available for the 2114/2115/2116.
How much memory can a 2114 be equipped with? That's another potential
problem with trying to use a 2114 for either 2000A or 2000E, or as a
system processor for the dual-processor versions. The 2114 might also
be short on I/O slots, though it has enough to be an I/O processor
for 2000B and 2000C.
Eric