Subject: Re: Y2k problems on a IIgs w/ProDOS 4.0.2
Newsgroups: comp.sys.apple2
From: dempson@actrix.gen.nz (David Empson)
Date: Mon, 4 Oct 1999 13:49:43 +1300
Message-ID: <1dz5kqo.8e1emi1ujnji8N%dempson@actrix.gen.nz>
References: <021019991844159182%bvito@ne.mediaone.net> 
<19991003150341.13421.00000146@ng-ba1.aol.com>
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Supertimer <supertimer@aol.com> wrote:

> bvito <bvito@ne.mediaone.net> wrote:
> 
> >will there be any year 2000 problems with a IIgs running ProDOS 4.0.2?
> >thanks.
> 
> ProDOS 8 (the IIe operating system) has a problem ever few
> years.  I think 1996 was the last time it happened.

It is actually the ThunderClock driver which has a problem and must be
patched every five or six years.  (This is due to the ThunderClock not
returning a year, and ProDOS having to look up the year from a table,
derived from the day of the week.  Taking leap years into account, it
only takes five or six years to run out of entries in this table.)

ProDOS-8 doesn't need to be patched at all if you are using a IIgs, but
it wouldn't hurt to run as new a version as possible.

-- 
David Empson
dempson@actrix.gen.nz
Snail mail: P O Box 27-103, Wellington, New Zealand