From: Randy Barlow <randy@electronsweatshop.com>
To: gentoo-user@lists.gentoo.org
Subject: Re: [gentoo-user] Can RAM render useless the encryption of the / and swap partitions?
Date: Thu, 04 Oct 2007 14:53:15 -0400 [thread overview]
Message-ID: <4705369B.9030605@electronsweatshop.com> (raw)
In-Reply-To: <20071004163457.2bf0ad43.hilse@web.de>
Hans-Werner Hilse wrote:
> In theory, for the one transistor and one cap case, you have a loaded
> cap that will take "forever" losing its load, won't it? But in
> practice, I think, that's not realistic.
It's actually not theory vs. practice. Even in theory, it's not just a
cap, it's a cap and a resistor. So you have a time constant, tau =
R*C. Since the capacitance is very small (picofarads) and we're not
talking large resistance either, you end up with a very small time
constant and that cap leaks its charge very quickly (which is why the
RAM needs to be refreshed and powered).
--
R
--
gentoo-user@gentoo.org mailing list
prev parent reply other threads:[~2007-10-04 19:09 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-10-04 6:42 [gentoo-user] Can RAM render useless the encryption of the / and swap partitions? Liviu Andronic
2007-10-04 13:47 ` Alan McKinnon
2007-10-04 14:34 ` Hans-Werner Hilse
2007-10-04 15:52 ` Volker Armin Hemmann
2007-10-04 16:04 ` Liviu Andronic
2007-10-04 17:49 ` Volker Armin Hemmann
2007-10-04 18:28 ` Liviu Andronic
2007-10-04 19:48 ` Mick
2007-10-05 20:57 ` Daniel Pielmeier
2007-10-06 4:22 ` Liviu Andronic
2007-10-06 9:04 ` Daniel Pielmeier
2007-10-04 16:57 ` Alan McKinnon
2007-10-04 18:33 ` Liviu Andronic
2007-10-05 11:38 ` Hans-Werner Hilse
2007-10-05 18:57 ` Randy Barlow
2007-10-05 20:44 ` Liviu Andronic
2007-10-09 1:51 ` Alex Schuster
2007-10-15 21:45 ` Liviu Andronic
2007-10-04 18:53 ` Randy Barlow [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=4705369B.9030605@electronsweatshop.com \
--to=randy@electronsweatshop.com \
--cc=gentoo-user@lists.gentoo.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox