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- Path: sparky!uunet!munnari.oz.au!spool.mu.edu!olivea!charnel!sifon!newsflash.concordia.ca!mizar.cc.umanitoba.ca!charltn
- From: charltn@ccu.umanitoba.ca (Jim Charlton)
- Newsgroups: comp.sys.ibm.pc.misc
- Subject: Re: Pizza Hut erases diskettes
- Message-ID: <C02yEv.Dxp@ccu.umanitoba.ca>
- Date: 30 Dec 92 16:13:42 GMT
- References: <1992Dec30.000429.24047@panix.com>
- Sender: news@ccu.umanitoba.ca
- Organization: University of Manitoba, Winnipeg, Canada
- Lines: 23
- Nntp-Posting-Host: ccu.umanitoba.ca
-
- In <1992Dec30.000429.24047@panix.com> schuster@panix.com (Michael Schuster) writes:
-
- >I'd often wondered about the magnetic safety of mailing diskettes.
- >Wondered how many diskettes that arrived unreadable were really
- >due to exposure to magnetic fields during transit.
-
- >Today in my mailbox was a post card from Pizza Hut. Taped to it was
- >a magnetic sticker, suitable for posting on your refrigerator door,
- >with the phone number of my local store.
-
- >Good thing no software publisher was mass-mailing update diskettes
- >this week, eh?
-
- I also wondered how susceptible disks were to magnetic fields. So I
- took a disk, half filled with files, and exposed it to the field of a
- strong horseshoe magnet (3 1/2" diskette). While I could easily pick
- the disk up by its metal gate I could not in any way corrupt the data
- on the disk! I suspect that data is much less vulnerable to static
- magnetic fields than is commonly thought. Alternating current
- electromagnets/transformers etc. may be much more damaging but I conducted
- no tests with alternating fields.
- jim...
- charltn@ccu.umanitoba.ca
-