[Coco] RAM expansion options for the CoCo 3

[Michael Brant]

Speaking of RAM expansion I seem to remember some one working on a 1 or 2
meg expansion in recent times.  Who was that.

On Apr 17, 2017 11:43 PM, "Arthur Flexser" <flexser at fiu.edu> wrote:

> 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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