[net.micro] *B* clones and work-a-likes

kev@voder.UUCP (Kevin Hoskins) (12/11/85)

     
     I am interested in anyone's experiences with *B* clones and
compatibiles. Why did you buy the one you have? What was its price? What
do you like or dislike about the machine? Did you buy a completely
assembled brand name unit or did you buy a collection of parts and
assemble it youself? And, most important, have you ran into any
programs that will not run (even with patches, etc). If so, on what
machine was it on?

     Please let me know about anything that would help me in making a
decision on what type of compatible to buy.

     If you have undertaken the task of assembling a clone from individual
parts, please let me know how you feel about the quality of the components,
the price, the location where they were bought (is the facility willing to
stand behind its product, is there any support, etc?), and how well the
clone performs.

     Thanks.

dmt@mtgzz.UUCP (d.m.tutelman) (12/24/85)

>      I am interested in anyone's experiences with *B* clones and 
> compatibiles. Why did you buy the one you have? What was its price? What 
> do you like or dislike about the machine? Did you buy a completely 
> assembled brand name unit or did you buy a collection of parts and 
> assemble it youself? And, most important, have you ran into any 
> programs that will not run (even with patches, etc). If so, on what 
> machine was it on?
> 
>      If you have undertaken the task of assembling a clone from individual
> parts, please let me know how you feel about the quality of the components,
> the price, the location where they were bought (is the facility willing to 
> stand behind its product, is there any support, etc?), and how well the 
> clone performs.

I've built two clones over the last three years.  One experience was a
healthy education, ending with a machine I still use (I'm sending this
from it).  The other was a disaster, and I welcome this opportunity
to vent a little spleen.

1.  Good experience - MicroMint MPX-16 not-quite-compatible.  Yup, the
company that turns Steve Ciarcia's BYTE articles into kits;  remember the
IBM bus-compatible (that really ran CP/M-86).  Well, they never claimed
it would be completely compatible, and it ain't.  Since one of my objectives
for the project was to learn about PC software compatibility, this was
a major success -- my machine contains every subtle way for a program
to be incompatible.  However, I generally know what won't work and why,
and can sometimes patch around the problem.  And enough stuff works
"right out of the box" that it's a damn useful machine.  But I wouldn't
recommend it today.  Anyone buying a clone can get more compatibility
for less money.  (Remember that this was almost the first clone; COMPAQ
may have beaten them. It was certainly the first clone KIT.)

2.  Bad experience - MBE-XT board from Computer Parts Galore.  A year or
so ago, A friend and I built a couple of XT-clone motherboards from
bare boards.  One was a SUPER-XT and the other an MBE-XT.  The SUPER came
up fairly easily, but the MBE doesn't work to this day.  After debugging
it with pretty sophisticated tools (Biomation with 8088 disassembler),
I still saw flaky memory performance anytime I put over 128K into it.
Sent it back to Computer Parts Galore for repairs; they changed a lot of chips
(including all the memory chips), but it doesn't work any better (that
is to say, not well enough to boot).  I've heard from a tech who sounds
knowledgeable that the MBE is a known problem.  The circuit design is much
the same as the SUPER-XT, but the board layout was screwed up.  I BELIEVE
IT!

What do I use and really like?  On my desk at work I have an AT&T PC6300.
It's the fastest clone I've used (8MHz 8086 with full 16-bit memory
access), and I haven't used any software that wouldn't run on it.  Best
of all, it has good (as in monochrome) alphanumerics and IBM-compatible
graphics -- best of both worlds.  (Hercules graphics aren't compatible
with most existing software, and CGA alpha gives me a headache.)  If I
didn't have so much hardware around the house already, I'd buy one for
home.
(Yes, I do work for AT&T, so I'm probably biased, but I'm being as candid
as I can.)

             		Dave Tutelman
                	Physical - AT&T Information Systems
                  		Room 3P432
                   		200 Laurel Avenue
                  		Middletown, NJ 07748
                	Logical -  ...ihnp4!mtuxo!mtgzz!dmt
             		Audible -  (201) 957 5535
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