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From: tanner@cdis-1.uucp (Dr. T. Andrews)
Newsgroups: comp.unix.xenix
Subject: Re: Data integrity on microcomputers
Message-ID: <7626@cdis-1.uucp>
Date: 15 Sep 89 14:46:25 GMT
References: <1087@lakesys.UUCP>
Distribution: usa
Organization: Society to Preserve the Sand Gnat
Lines: 21

In article <1087@lakesys.UUCP>, davef@lakesys.UUCP (Dave Fenske) writes:
) As an example, micros have a simple parity check in memory where
) larger a larger computer might have ECC.
Micros may have anything from no error checking to full ECC.  I've
had the full range through the shop here.

) Also, the methods of checking data which is read off of disk, etc.
Essentially the same on everything from IBM mainframe to 8080 CP/M.
Special formats are also available; I saw one back-up software vendor
who stored enough redundant data that you could take a hole punch,
perf your disk, and still restore.

) In short, could a microcomputer be used in very sensitive applications?
No.  You should not use computers in sensitive applications.  The
people who screw up will simply blame the computer, and you (as
the vendor) look bad for selling them a computer.  (Why do this, when
you can look bad simply by flogging buggy software to less sensitive
users?:-)
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