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From: ast@cs.vu.nl (Andy Tanenbaum)
Newsgroups: comp.os.minix
Subject: Re: Interesting problem with timer (doc'n and impl'n)
Message-ID: <1553@botter.cs.vu.nl>
Date: Wed, 5-Aug-87 07:50:53 EDT
Article-I.D.: botter.1553
Posted: Wed Aug  5 07:50:53 1987
Date-Received: Sat, 8-Aug-87 03:33:16 EDT
References: <9@ipmoea.UUCP> <4345@felix.UUCP>
Reply-To: ast@cs.vu.nl (Andy Tanenbaum)
Organization: VU Informatica, Amsterdam
Lines: 12

In article <4345@felix.UUCP> zemon@felix.UUCP (Art Zemon) writes:
>In article <9@ipmoea.UUCP> ericr@ipmoea.UUCP (Eric Roskos) writes:
>+ 
>+ For a good while, I've noticed that after working with Minix and then rebooting
>+ DOS, the date and time on my machine would be wrong.  

The IBM clock speed is completely programmable.  MINIX sets it to 60 Hz.  I
vaguely recall seeing somewhere than MS-DOS sets it to 18 Hz or something
stupid like that.  If this is in fact true, you should reset it to 18 Hz
(or whatever it is) when restarting DOS.

Andy Tanenbaum (ast@cs.vu.nl)