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MathGroup Archive 2005

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Re: How to View Mathematica and Hardcopy Books

  • To: mathgroup at smc.vnet.net
  • Subject: [mg62571] Re: How to View Mathematica and Hardcopy Books
  • From: carlos at colorado.edu
  • Date: Mon, 28 Nov 2005 00:58:11 -0500 (EST)
  • References: <dls5ig$qn1$1@smc.vnet.net><dm6ei7$hmj$1@smc.vnet.net> <200511260746.CAA06334@smc.vnet.net> <8C5474EF-A0B2-4AD1-BECD-2A716B4BABF0@mimuw.edu.pl> <acbec1a40511260515t76815908q6dfdd4519770950a@mail.gmail.com> <dmbptt$q48$1@smc.vnet.net>
  • Sender: owner-wri-mathgroup at wolfram.com

The question of lifetime of digital recording is a murky one.
Some manufacturers (e.g. Kodak) now claim 200 years for a
properly stored (shielded cold vault) CD-R.  That would be
comparable to books.

But in practice technology changes govern lifetime.  When did you last
see a computer with 5.25" floppies or 1/2" magnetic tape?   That means
media transfers are needed every 10-20 years to keep it accessible.
A book printed in 1800 on good quality paper is still readable.


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