Date   : Thu, 07 Jun 1984 10:04:27-CDT
From   : John Otken <CC.Otken@UTEXAS-20.ARPA>
Subject: Re: Ferguson Big Board

I have extensively used a couple of Big Board II systems over the last
6 monsths.  The general specs for this single board computer are:

A 4Mhz Z80, 64k RAM, 1 SIO, 2 CTCs, 1 DMA channel, CRT controller,
SASI interface, STD bus, 256k RAM piggy back option, 6 EPROM slots.

For the most part this is a really nice computer.  Some very good
engineering.  For example the ports may be configured as DTEs or DCEs
by moving some jumper blocks.  The CP/M CBIOS is the fastest I have
seen anywhere (that runs in 64k).  You can get a hard disk system up
for a very reasonable price using this as a base (I did).  I have had
only minor reliability problems which are more than offset by the very
reliable CBIOS.  A EPROM programmer program is available.

If you are interested in nit picking...  There were a few screw ups...
The system cannot drive 5.25 and 8" disks at the same time.  There is
a minor design error in the write precompensation circuit (most other
disk controllers also have this problem).  The distributors, Cal-Tex
Computers, is a garage operation.  Which is not to say that they are
dishonest (I believe that they are very honest).  But they might not
be around in a year or two.  Oh yea, do NOT ask Bill Siegman (the
owner) anything other than yes/no/how-much questions..  He will talk
your head off about the silliest subjects.

If you have any questions -- ask (me..  Not Cal-Tex..  See above).
John Otken 512-471-3241.