ethan.dicks at usap.gov
Thu Jan 24 01:32:08 CST 2008
On Wed, Jan 23, 2008 at 10:59:56PM -0800, silvercreekvalley wrote:
> I've read quite a few DEC faq's recently, but couldnt
> find performance spec's on the PDP 11/24. Is this the
> same as the original 11/23?
The same execution speed? Yes, I believe so.
> How would it compare with a 11/34A?
I'm not sure. I've never compared relative PDP-11 performance,
but there should be some literature from the period that does.
> From what I can see the 34A was restricted to
> 256Kwords of RAM
Yes.... 18-bit address bus. no mapping.
> whereas the 11/24 seems to support up to 1Mwords?
It _should_ be 2Mwords, but only if you have a KT-24 (MMU)
board installed. Then, I think it's only the same 256Kwords
as an 11/34, since there's no Unibus Map.
I _think_ that the 11/24 can use the same memory as an 11/44 (256K and 1MB
boards), but someone with contant network access should be able to verify
Ethan Dicks, A-333-S Current South Pole Weather at 24-Jan-2008 at 07:20 Z
South Pole Station
PSC 468 Box 400 Temp -29.7 F (-34.3 C) Windchill -47.1 F (-43.9 C)
APO AP 96598 Wind 5.1 kts Grid 72 Barometer 686.2 mb (10395 ft)
Ethan.Dicks at usap.gov http://penguincentral.com/penguincentral.html
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