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Article #4034Re: Should the PC CLK_TCK really be (1000/55)?
From: Naoto Kimura (ACM)
Date: Sun, 23 Dec 1990 18:23
Date: Sun, 23 Dec 1990 18:23
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In article <15780.277225e2@levels.sait.edu.au> marwk@levels.sait.edu.au writes:
]In article <15779.2770e40e@levels.sait.edu.au>, marwk@levels.sait.edu.au writes:
]> In time.h in TURBO C 2.0 CLK_TCK is defined to be 18.2.
]> ...
]> Ray
]
]I thank everyone for informing me that it is indeed so - there is a clock
]which ticks over every 55ms, which is approximately 18.17 times per second.
]
]If this is so, then would it be better to #define CLK_TCK to be (1000/55)?
]to provide greater accuracy?
]
]Ray
If you really want to get picky, it should be
65536/3600
which comes out to be 18.20(4) ticks/second or every 54.931(640) ms
(where parenthesized digits repeat). Given this figure, you should be
able to figure out the significance of the clock ticks occurring
18.2 (approx) times a second.
[On a tangent here -- don't you find it funny that the repeated digit
sequence (640) appears ? -- hmm... a subliminal message I think :-) ]
//-n-\\ Naoto Kimura
_____---=======---_____ (abcscnuk@csuna.csun.edu)
====____\ /.. ..\ /____====
// ---\__O__/--- \\ Enterprise... Surrender or we'll
\_\ /_/ send back your *&^$% tribbles !!
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<15779.2770e40e@levels.sait.edu.au> <15780.277225e2@levels.sait.edu.au>Show Full Headers
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Path: arc1-ca.pugleaf.net!utzoo!attcan!utgpu!news-server.csri.toronto.edu!clyde.concordia.ca!thunder.mcrcim.mcgill.edu!snorkelwacker.mit.edu!apple!usc!csun!Twg-S5!abcscnuk From: abcscnuk@Twg-S5.uucp (Naoto Kimura (ACM)) Newsgroups: comp.os.msdos.programmer Subject: Re: Should the PC CLK_TCK really be (1000/55)? Message-ID: <1990Dec23.182348.21676@csun.edu> Date: 23 Dec 90 18:23:48 GMT References: <15779.2770e40e@levels.sait.edu.au> <15780.277225e2@levels.sait.edu.au> Sender: news@csun.edu (News Administrator) Organization: csun Lines: 31