486DX/SX (was: Re: Classic != IBM AT)

From: Doug Yowza <yowza_at_yowza.com>
Date: Fri Nov 6 23:10:07 1998

On Fri, 6 Nov 1998, Zane H. Healy wrote:

> As for a Math CoPro for the 486, I'm not sure I ever saw a 487 chip, but I
> always figured that they took the chips that didn't cut it as a normal
> processor but had a good Math CoPro, and sold them as 487's.

Has it been 10 years since the 486 came out? It must be getting close.
In any case, I think Max was right about the 487 really being just a 486
in a different package, and the 486SX was disabled by some logic when the
487 was present. I seem to recall that some software/hardware was able to
use the 486SX/487 combo as a crude multiprocessor box.

-- Doug
Received on Fri Nov 06 1998 - 23:10:07 GMT