[Coco] Re: [Color Computer] Looking for a Coco I 64k?

[Dave]

The latter white CoCo 1's only came with 64K....

Cheers Dave

--- In ColorComputer at yahoogroups.com, Mike Pepe <lamune at d...> wrote:
>
> 
> 
> Richard:
> 
> > There were modifications to make a CoCo 64K back to the D board 
(although it 
> > was a pain on the D). I have an E board that was modified to 
64K. Tandy 
> > always put 64K chips in for the upgrade to 32K, but they still 
called it 32K 
> > because that was all you could access from Basic. I've heard 
that the early 
> > 64K upgrades did use chips that were 'half good', but I don't 
know how 
> > reliable that rumor was. At any rate, they soon switched to good 
64K chips. 
> > Programs that require 64K will run on my CoCo I without issue. 
Programs like 
> > Telewriter 64 do report back the 64K available.
> 
> The rumor is true. There are actually a couple of official 32k 
upgrades 
> to the older CoCo 1- one was two banks of piggybacked 16k chips. 
The 
> other used 64k chips that are "half good". Those boards have a 
jumper 
> labeled "HIGH/LOW" depending on which half of the chips selected 
the 
> good 32k bank was on.
> 
> I have one of each type in my collection.
> 
> Later CoCo 1's were available with 64k. It was required for OS9.
>






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