[geeks] Fun compariosn between Mac Plus and AMD Dual Core  PC

[Lionel Peterson]

>From: Sridhar Ayengar <ploopster at gmail.com>
>Date: 2007/07/20 Fri PM 01:36:09 CDT
>To: The Geeks List <geeks at sunhelp.org>
>Subject: Re: [geeks] Fun compariosn between Mac Plus and AMD Dual Core   PC

>nate at portents.com wrote:
>>>> There's a very perverse processor upgrade module for the 7200 that lives
>>>> on a PCI card.  The original processor boots Mac OS, and an INIT
>>>> identifies the add-in card, gets the main CPU's caches into a known
>>>> state, and then "pivots" the running system over to the faster
>>>> processor.
>>> Wow.  That's pretty strange.
>>>
>>> The only card-based processor upgrades I've ever used are MCA cards that
>>> just take over the bus.
>> 
>> If you think that's strange, how about the Radius Skylab project.  Never
>> made it to market, but picture a rack mount system with fourteen NuBus
>> slots filled with Radius Rocket 'accelerators' (really complete Mac
>> systems on a card, sans ROM), fifteen 3.5" drive bays, and four 5.25"
>> drive bays, booted/controlled by a Mac SE/30 as a console, and designed
>> for cluster computing/render farm type tasks.
>
>I think that's actually less strange.  I've seen other machines put 
>together like that.

Wasn't there a Multia Cluster from DEC at one time? I seem to recall some seller ("Starship trading", or some such) had a rack that held a number of multia MBs with one big PS, the HDs were 2.5" drives on the MB (I guess)...

Lionel