Re: Google set to make its own energy efficient ARM Server chip

Newsgroups	comp.os.linux.advocacy, comp.os.linux.embedded, uk.comp.os.linux
From	unruh <unruh@invalid.ca>
Subject	Re: Google set to make its own energy efficient ARM Server chip
References	(3 earlier) <l8lbic$g6q$2@reader1.panix.com> <03sru.770233$i75.479117@fx03.iad> <q4zru.490$rx5.425@fx05.am4> <E4Hru.610246$rL6.270787@fx14.iad> <xGKru.25855$fY2.18253@fx04.am4>
Message-ID	<uDMru.15$DB4.7@fx14.iad> (permalink)
Date	2013-12-17 00:10 +0000

Cross-posted to 3 groups.

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On 2013-12-16, 7 <email_at_www_at_enemygadgets_dot_com@enemygadgets.com> wrote:
> unruh wrote:
>
>> 
>> Not sure either what you mean by "digital versions of quantum
>> computers".
>
> Analog computers are different from digital computers.
> Digital versions of analogue computers can be made.
>
> Digital computers are different from quantum computers.
> Digital versions of quantum computers can be made.

A quantum computer is not an analog computer. It uses bits to represent
numbers just like any other digitial computer does. That those bits can
be in a superpostion of states, or that they can be entangled with other
bits does not make it analog.
It is certainly true that a  quantum computer working on a problem which
can be sped up by quantum computation, behaves differently from a
classical computer, but just as for classical digital computers, a
quantum computer has a few operations which are universal. Ie, any
quantum computation can be implimented by repeated application of that
minimal set of operations. 

The key feature as far as energy efficiency is concerned is that 
quantum operations must  in general be reversible which means that
intheory they require no energy to run. That is of course not true in
practice, but they need very very little energy to run.  

Note that attempting to simulate quantum operations on a classical
digitial computer might be what you refer to, but that would be a
completely stupid thing to do, since the memory and time requirements
would be far  greater than even any classical computer solving the
same problem-- it would offer no advantage at all
. 
>

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Google set to make its own energy efficient ARM Server chip 7 <email_at_www_at_enemygadgets_dot_com@enemygadgets.com> - 2013-12-14 21:18 +0000
  Re: Google set to make its own energy efficient ARM Server chip Grant Edwards <invalid@invalid.invalid> - 2013-12-14 22:52 +0000
    Re: Google set to make its own energy efficient ARM Server chip 7 <email_at_www_at_enemygadgets_dot_com@enemygadgets.com> - 2013-12-14 23:38 +0000
      Re: Google set to make its own energy efficient ARM Server chip Les Cargill <lcargill99@comcast.com> - 2013-12-14 18:16 -0600
      Re: Google set to make its own energy efficient ARM Server chip Grant Edwards <invalid@invalid.invalid> - 2013-12-15 22:47 +0000
        Re: Google set to make its own energy efficient ARM Server chip unruh <unruh@invalid.ca> - 2013-12-16 00:45 +0000
          Re: Google set to make its own energy efficient ARM Server chip Grant Edwards <invalid@invalid.invalid> - 2013-12-16 02:08 +0000
            Re: Google set to make its own energy efficient ARM Server chip unruh <unruh@invalid.ca> - 2013-12-16 03:30 +0000
          Re: Google set to make its own energy efficient ARM Server chip 7 <email_at_www_at_enemygadgets_dot_com@enemygadgets.com> - 2013-12-16 08:38 +0000
            Re: Google set to make its own energy efficient ARM Server chip Grant Edwards <invalid@invalid.invalid> - 2013-12-16 15:16 +0000
          Re: Google set to make its own energy efficient ARM Server chip 7 <email_at_www_at_enemygadgets_dot_com@enemygadgets.com> - 2013-12-16 08:38 +0000
          Re: Google set to make its own energy efficient ARM Server chip 7 <email_at_www_at_enemygadgets_dot_com@enemygadgets.com> - 2013-12-16 08:38 +0000
          Re: Google set to make its own energy efficient ARM Server chip 7 <email_at_www_at_enemygadgets_dot_com@enemygadgets.com> - 2013-12-16 08:38 +0000
            Re: Google set to make its own energy efficient ARM Server chip unruh <unruh@invalid.ca> - 2013-12-16 17:51 +0000
              Re: Google set to make its own energy efficient ARM Server chip 7 <email_at_www_at_enemygadgets_dot_com@enemygadgets.com> - 2013-12-16 21:56 +0000
                Re: Google set to make its own energy efficient ARM Server chip unruh <unruh@invalid.ca> - 2013-12-17 00:10 +0000
                Re: Google set to make its own energy efficient ARM Server chip Lusotec <nomail@nomail.not> - 2013-12-17 03:30 +0000
                Re: Google set to make its own energy efficient ARM Server chip unruh <unruh@invalid.ca> - 2013-12-17 03:48 +0000
                Re: Google set to make its own energy efficient ARM Server chip 7 <email_at_www_at_enemygadgets_dot_com@enemygadgets.com> - 2013-12-17 18:44 +0000
                Re: Google set to make its own energy efficient ARM Server chip unruh <unruh@invalid.ca> - 2013-12-17 19:42 +0000
                Re: Google set to make its own energy efficient ARM Server chip Thad Floryan <thad@thadlabs.com> - 2013-12-17 12:23 -0800
                Re: Google set to make its own energy efficient ARM Server chip unruh <unruh@invalid.ca> - 2013-12-18 00:19 +0000
                Re: Google set to make its own energy efficient ARM Server chip unruh <unruh@invalid.ca> - 2013-12-18 00:34 +0000
                Re: Google set to make its own energy efficient ARM Server chip David Brown <david.brown@hesbynett.no> - 2013-12-18 11:06 +0100
                Re: Google set to make its own energy efficient ARM Server chip Frank Miles <fpm@u.washington.edu> - 2013-12-18 16:18 +0000
                Re: Google set to make its own energy efficient ARM Server chip 7 <email_at_www_at_enemygadgets_dot_com@enemygadgets.com> - 2013-12-18 19:19 +0000
                Re: Google set to make its own energy efficient ARM Server chip David Brown <david.brown@hesbynett.no> - 2013-12-19 10:05 +0100
                Re: Google set to make its own energy efficient ARM Server chip 7 <email_at_www_at_enemygadgets_dot_com@enemygadgets.com> - 2013-12-19 20:45 +0000
                Re: Google set to make its own energy efficient ARM Server chip David Brown <david.brown@hesbynett.no> - 2013-12-20 09:40 +0100
                Re: Google set to make its own energy efficient ARM Server chip 7 <email_at_www_at_enemygadgets_dot_com@enemygadgets.com> - 2013-12-20 20:55 +0000
                Re: Google set to make its own energy efficient ARM Server chip David Brown <david.brown@hesbynett.no> - 2013-12-19 09:54 +0100
                Re: Google set to make its own energy efficient ARM Server chip unruh <unruh@invalid.ca> - 2013-12-17 19:40 +0000
    Re: Google set to make its own energy efficient ARM Server chip Les Cargill <lcargill99@comcast.com> - 2013-12-14 18:15 -0600

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