Path: utzoo!utgpu!water!watmath!garfield!martyn From: martyn@garfield.UUCP (Martyn Quigley) Newsgroups: comp.sys.ibm.pc Subject: Re: Disk holes and other strange things (was Re: F-15 Strike Eag) Keywords: What about 3.5" discs? Message-ID: <4559@garfield.UUCP> Date: 4 Mar 88 16:03:44 GMT References: <3037@cup.portal.com> <3186@cup.portal.com> <3255@cup.portal.com> <1412@puff.cs.wisc.edu> <4709@ecsvax.UUCP> Reply-To: martyn@garfield.UUCP (Martyn Quigley) Organization: Memorial University of Newfoundland Lines: 13 In article <4709@ecsvax.UUCP> mjg@ecsvax.UUCP (Michael Gingell) writes: >In article <1412@puff.cs.wisc.edu>, ttang@puff.cs.wisc.edu (Theodore Tang) writes: >> The index hole on the floppy disk is used only for formatting purposes so all >> tracks remain in sync. When the disk is read, the hole is not used. I'm not >> sure about writes. > >On older disk drives you can actually cover the index hole with an >opaque write protect tab and still read or write. However you need >the index hole for formatting. > Any comments about 3.5" discs? I have just formatted one, and I can't find any index hole in it.