Qbus split I&D?
ggs at shiresoft.com
Tue Mar 17 14:41:35 CDT 2015
> On Mar 17, 2015, at 12:32 PM, Ethan Dicks <ethan.dicks at gmail.com> wrote:
> On Tue, Mar 17, 2015 at 3:03 PM, Christian Gauger-Cosgrove
> <captainkirk359 at gmail.com> wrote:
>> True, SRAM would be cheaper... a massive upgrade to the PDP-11/70s performance
>> in place of its normal MOS memory or core memory
> You can get some pretty fast SRAM for not much money, and 4MB isn't
> "that much" in terms of part count.
> I'd love to replace an MK11 and several cards with that PEP70, but I
> doubt I'll ever see one.
> As for MRAM, unless you have a full front panel, I don't think
> non-volatility is as important as raw performance. Sure... it's nice
> to be able to walk up and turn the key (I do that on a PDP-8/L with
> power-fail restart) but really... how hard is it to log in, shut down
> the OS then power off? I'd rather have a faster machine while I'm
> using it.
Hmm. Maybe I should consider building a PEP-70 clone (I already
have a PEP-70/Hypercache in my 11/70). It shouldn't be too hard
to do (as has been mentioned before).
TTFN - Guy
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