[Coco] RAM expansion options for the CoCo 3

[Arthur Flexser]

There was also a competitor to Big Basic, called maybe 512K Basic.  I
remember both being advertised in Rainbow.  (As an interesting historical
note, some years earlier there was a product called KEY264K for the CoCo
1/2 that expanded the RAM that Basic could have available by switching
between the two 32K RAM banks of a 64K CoCo.)

Art

On Mon, Apr 17, 2017 at 11:05 PM, Sean <badfrog at gmail.com> wrote:

> Sorry to bump a 6 day old reply, but I remember an ad and also a booth at a
> Rainbowfest advertising "Big Basic", that could take more advantage of more
> available RAM.  I don't remember any specifications other than being
> interested in it at the time, but seeing this thread rang a bell.
>
> On Tue, Apr 11, 2017 at 2:40 PM, Bruce W. Calkins <
> brucewcalkins at charter.net
> > wrote:
>
> > DECB supports 32k of RAM with little ability to effectively use the extra
> > 128 or 512k.  OS-9  Level 2 shines with more RAM. Currently no one is
> > supporting greater than 512k upgrades.  To the best of my knowledge
> Cloud-9
> > is the only source of new 512k upgrades.  (Unless you are willing to
> > piggy-back 256k by 4 chips yourself.)  Disto/CRC 1 & 2 Meg upgrades
> > existed, but the hardware was somewhat kludgey needing modifications to
> > some DECB programs and tweaking of OS-9 to work as well as unsoldering
> the
> > CPU.  NitrOS9 does support 1& 2 Meg units, but Disto/CRC folded up shop
> > decades ago.  What few 1 & 2 Meg upgrade units that exist are seldom
> parted
> > with and carry quite a premium on eBay.
> >
> > Bruce W.
> >
> >
> >
> >
> > On 04/11/2017 12:40 PM, Salvador Garcia via Coco wrote:
> >
> >> Hi all,
> >> What RAM expansion options are there for the CoCo 3 and why would I pick
> >> one over the other?
> >> I know that Cloud-0 is distributing the Triad, a 512K RAM expansion. Is
> >> this capacity the better choice for DECB? For NitrOS9?
> >> I have heard of the 2MB RAM expansion, but I don't have any information
> >> about it to consider it.
> >>
> >> I favor the Triad, but want to make sure that I get the best option for
> >> what I need (DECB and NitrOS9).
> >> Thanks! Salvador
> >>
> >>
> >
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