From: bv@wjv.com
In article <1145409381.343322.292140@u72g2000cwu.googlegroups.com>,
Kelly Leavitt wrote:
>Wow. Finally found one of these lurking inside a recent model 16B. It
>is labeled PC60004MR2. HWP (c) 1987. Anyone know anything about these?
I had a 2MB in my 16[a]
>Do I need a special kernel build to access it?
As I recall the system could only address 1MB of RAM, and the extra
1MB was a RAM disk, with a driver from Bob Snapp. It made a
tremendous performance increase.
A bit of trivia. When Bob was selling these he talked about one
system that was slow and had 4 users. He analyzed it and found
they company could get more work done with 3 users, as the swapping
to the HD slowed things down to the point that 3 could get more
work done than 4.
With the swap on RAM you could put on many users.
I don't know if there were other modifications later to make
the RAM accessible to the machine, but I think it would have to be
a hardware mod.
>There was no hard drive directly associated with this computer (there
>were 2 external drive units, but I have not tested any yet).
My first 16 was when it was discontinued for the 16B. I finally
swapped out the 8MB 8-inch external HD for two 33MB Rodimes from
Bob Snapp.
Actually almost any HD can work. I recovered a system that had
Iomega backups when it's Tandon HD failed - as they were prone to
do. I attached a 5.25" Seagate 20MB externally - case open on the
table for the recovery - and reinstall the backups to that, and
them made serial xfers to a new IBM Model 80, running filePro, just
like the 16.
They really were wonderful old beasts, and the Xenix 1.3.[x] has
a 76K kernel on my first machine.
Bill
--
Bill Vermillion - bv @ wjv . com
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