ploopster at gmail.com
Wed Nov 21 17:22:12 CST 2007
Chuck Guzis wrote:
> On 20 Nov 2007 at 14:47, Chris M wrote:
>> to what degree was it homebuilt? Do you mean simply
>> assembled from parts? Who made the mobo if that was
>> the case. I only know of 1 non-8088 mobo (of course
>> there could have been others).
> The V30 was not an "upgrade" in the traditional sense--it was a pin-
> for-pin CMOS replacement for the 8086. Because of some internal
> architectural features, it ran somewhat faster than an 8086 of the
> same clock speed and implemented many of the 186 instruction set
> additions. It also had an emulation mode for running 8080 code.
> There were more 8086 mobos than you might imagine. Consider, for
> example, the Stearns PC. Since there was a CMOS 80C86 available
> before the 80C88, the 8086 also found its way into several laptops.
Or the rather sizeable number of IBM PS/2 Model 25s and 30s.
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