View Full Version : Yet another Bios

January 3rd, 2016, 08:08 AM
I've dumped the bios from a generic XT clone I own (8088, 4.77 MHz, 640 Kb). It's labelled TD 03.86. From a 2764 eprom. Generic Motherboard.
These are info you can get from inside the bin file:

COPAM(C) 1985
Author:Thomas Lao
86(C) TD3.86 ID:75102637

Just in case anybody need it...

Funny: this guy also has the same bios (or a quite similar one, I didn't compare them), but it seems to own to another firm (not COPAM)....

January 3rd, 2016, 10:18 AM
I would be surprised if that wasn't a YAHEB (Yet Another Hacked ERSO BIOS). ERSO made the code available back in the 80s to aid the burgeoning Taiwanese PC manufacturing operation. I've seen versions of that same BIOS, hacked, as late as 2000.

January 3rd, 2016, 10:30 AM
I've got a genuine ERSO BIOS. :-)

January 3rd, 2016, 10:43 AM
I've got a genuine ERSO BIOS. :-)

You mean one where the signon hasn't been hacked? I've got a couple of those too, but they've got additional vendor tweaks in them for "turbo" and they're not the same, but identify themselves as ERSO.

I suspect that the original ERSO source may still be running around.

January 3rd, 2016, 02:07 PM
I'm still hoping to one day unearth one that identifies itself as "PC Craft", since that's what I had "back in the day". I don't know if it was an ERSO clone, but it was a Taiwanese "turbo XT" board so the odds are good.

January 3rd, 2016, 02:22 PM
Just in case anybody need it...
I have appended it to the small collection at [here (http://www.minuszerodegrees.net/xt_clone_bios/xt_clone_bios.htm)].

January 4th, 2016, 06:12 AM
I have appended it to the small collection at [here (http://www.minuszerodegrees.net/xt_clone_bios/xt_clone_bios.htm)].


January 5th, 2016, 09:38 AM
Was COPAM a Taiwanese clone maker or somesuch? It seems like their PC compatibles found their way here pretty early on (as evidenced by a weird "introduction to the COPAM PC" BASIC program in Hebrew dated 1983) but I was never able to find out much about them.

January 5th, 2016, 10:46 AM
Could be--there were a lot of small Taiwanese operations, as well as resellers. For example, I've got a clone here with the "Pantex" badge--from a reseller in Texas. Inside, it's pure ERSO/Taiwan goodness--nothing domestic about it at all.