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Article View: comp.sys.ibm.pc.misc
Article #11129

Re: Floppies

#11129
From: Jeff Hartung
Date: Thu, 20 Jun 1991 16:30
26 lines
1673 bytes
In article <chris.4257@genly.UUCP> chris@genly.UUCP (Chris Hind Genly) writes:
<3 1/2 inch
<----------
<
<     DS DD 80 tracks,  9 sectors/track,  720K formatted, 1M raw
<     DS HD 80 tracks, 18 sectors/track, 1.44M formatted, 2M raw
<     DS ED                              2.88M formatted, 4M raw,
<                                        requires DOS 5.0 and above.
<
<- DD and HD diskettes have roughly the same coercivities.
<
<- HD diskettes have a square hole in the plastic casing directly opposite
		       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
<  from the write-protect hole.  DD diskettes do not.

...and we all know the trick one can therefore use to format DD 3.5" diskettes
at 1.44 Mb, right?  :-)  Of course, one must take care not to damage the
diskette when punching the hole into the plastic casing, and I wouldn't
recommend this for anything you don't have a second, more reliable copy of
somewhere (i.e., don't use these for hard disk backups, etc. :-)

-- 
 --Jeff Hartung--  	
 Disclaimer: My opinions only, etc., etc., BLAH! BLAH! BLAH!...
 InterNet - hartung@crl.ucsd.edu    	 BITNET - hartung@ucsd
 UUCP - ucsd!crl.ucsd.edu!hartung
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!sun-barr!olivea!samsung!sol.ctr.columbia.edu!ucselx!ucsd!sdcc6!crl!hartung
From: hartung@crl.ucsd.edu (Jeff Hartung)
Newsgroups: comp.sys.ibm.pc.misc,comp.sys.ibm.pc.hardware
Subject: Re: Floppies
Message-ID: <20804@sdcc6.ucsd.edu>
Date: 20 Jun 91 16:30:31 GMT
References: <chris.4257@genly.UUCP>
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Followup-To: comp.sys.ibm.pc.misc
Organization: University of California, San Diego
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