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Re: Alpha Book?



(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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