PCBUILD Archives

Personal Computer Hardware discussion List

PCBUILD@LISTSERV.ICORS.ORG

Options: Use Forum View

Use Monospaced Font
Show Text Part by Default
Show All Mail Headers

Message: [<< First] [< Prev] [Next >] [Last >>]
Topic: [<< First] [< Prev] [Next >] [Last >>]
Author: [<< First] [< Prev] [Next >] [Last >>]

Print Reply
Subject:
From:
Jim Meagher <[log in to unmask]>
Reply To:
PCBUILD - PC Hardware discussion List <[log in to unmask]>
Date:
Thu, 26 Feb 1998 17:47:19 -0500
Content-Type:
text/plain
Parts/Attachments:
text/plain (23 lines)
David Hurst wrote:
>
> Are CD-ROMs in any way affected, like floppy disks, by magnetic
> force..??

In a word... no.  A CD is an optical recording that uses a laser beam
to sense areas that can reflect or not reflect (the ones and zeros
that a PC loves so much).

A floppy disk on the other hand is a magnetic recording.  The read head
of a floppy disk senses the polarization (N-S) or the reversed (S-N)
polarization of the sections of the disk.  A strong magnetic field like
a magnet can scramble these north and south polarizations making the
disk unreadable.

--
Jim Meagher
============================
Micro Solutions Consulting        Web Design, Network Administration
[log in to unmask]                     Hard/software Installation, Service
http://www.ezy.net/~microsol    410-543-8996
============================

ATOM RSS1 RSS2