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- Path: sparky!uunet!think.com!spool.mu.edu!torn!utgpu!attcan!john
- From: john@attcan.UUCP (John Benfield)
- Newsgroups: comp.os.msdos.misc
- Subject: Re: A Frank Discussion on Piracy (..off on a tangent)
- Message-ID: <19384@vpk1.UUCP>
- Date: 4 Jan 93 19:27:57 GMT
- References: <1992Dec19.234354.7364@pegasus.com> <1hohvbINNr47@crcnis1.unl.edu>
- Distribution: usa
- Organization: AT&T Canada - MIS Network Development
- Lines: 36
-
- In article <1hohvbINNr47@crcnis1.unl.edu>, vporguen@unlinfo.unl.edu (victor porguen) writes:
- > jenk@microsoft.com (Jen Kilmer) writes:
- >
- ....
- > >known about windows 3.1. Windows 3.0 shipped on writable disks; windows 3.1
- > >(and the ms-dos 5 upgrade, and most new products being released) are shipped
- > >on "permanently" write-protected disks.
- >
- > Of course, backup disks and "backup disks" are not so
- > write-protected...
- >
- > >From a support standpoint, this is seriously cool (unless the user cut
- > >a notch in a set of 5.25"s, no viruses, no accidently-deleted-the-file-we
- > >-need, etc :)
- >
- > Just copy the disk and you have an infectable medium.
-
- a side question....
-
- Is the drive write line hardware gated by the write enable or
- is it just another signal passed to the drive controller? I know
- when I used to do subsystem design, most of the disk controller
- chips could be forced to write regardless of the state of the
- write protect. It was up to the device driver to ensure that the
- controller was initialized and the protect/enable was set up
- properly (I think that the main reason was to allow the designer
- to change the function of the 'tab' from 'write protect' to 'write
- enable'. To be honest, I still think of the PC as being 'the wrong
- way around'. Too many years of write enable tabs, I guess. :)
-
- Anyways...the point of my question is can the write protect
- on a 'standard' pc/xt/at be disabled with software?
-
- John Benfield
- ..uunet.ca!attcan!john
- john@attcan.att.ca
-