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Re: Alpha Book?
- From: Matti Aarnio <matti aarnio sonera fi>
- To: axp-list redhat com
- Subject: Re: Alpha Book?
- Date: Sun, 31 Jan 1999 19:51:09 +0200 (EET)
(attribution dropped)
> On Sat, 30 Jan 1999, J.W. Pennington wrote:
> > Does anybody know of seller/distributers for AlphaBooks? Seems that I
> > remember hearing that they're out there, but they're not even on
> > Digital's web site.
>
> amazon.com :) [Thats where I got Alpha Arch Reference Manual]
....
Sigh, that is quite wrong reference.
AlphaBook1 is from Tadpole's repertoire: www.tadpole.com
(5 seconds after I gave the word to NetScape's default search
engine I had the reference, and then I remembered...)
Have you folks never noticed that "AlphaBook" selection in
the current kernel sources for Alpha system type ? :-)
That one is using DEC 21066 processor at some sluggish CPU rate
so that it won't be eating so much juice as e.g. 21164/533...
After all, a processor eating 30 to 50 Wats in a laptop is
"somewhat" difficult to feed... Using 9.6V batteries with
2 Amper hour capacity (circa 70 kiloJoule) would feed the
CPU for 1400 seconds at rate of 50Wats/sec ( = Joules ).
That ignores all the power which the system needs for other
components.
Usually laptops have power budgets around 20-30 Wats total,
out of which the CPU alone is some 3-5 Wats, and the battery
capacities are around 20 kJ instead of 100 kJ..
(Yeah, I use physicists units here, they are so usefull for this.)
/Matti Aarnio <matti.aarnio@sonera.fi> -- who does not have AlphaBook
either, just some intel thing..
PS: I have seen battery-powered Indy a few ears ago, with
couple "motorcycle" lead batteries with circa 500 kJ
capacity. It wasn't small, and they had a huge 20W LCD
display for it - no 200W tube.. Still one person was
able to carry it :)
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