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Technology Stocks : TAVA Technologies (TAVA-NASDAQ)

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To: Bonzo who wrote (8161)	1/1/1998 10:58:00 AM
From: John Miz	Read Replies (1) of 31646

Joe, Mike Winn wrote in his post; quote, "So where is the date used? "Only in the control panel computer where the accounting, inventory, and report date are generated. Do the embedded systems need to know about the date? No, obviously. Everything inside those embedded systems are running on clock ticks, not on clock time or date." Unquote. Now, I was told these are very DANGEROUS assumptions. That embedded systems use dates for: Alarm message log files Operator command log files Calibration/maintenance history Network protocol software File system software Time validation of commands (to reject stale commands) Time dependant authenticaion codes Performance measurement Computation/prediction of time dependant external conditions Distributed network protocols used for failure tolerant systems Stored commands to be executed at a future date/time Compensation for component aging/wear Time dependant mode selection (traffic lights, elevators) Preventative maintenance scheduling That's just a partial list. If you care to comment, please do so. John

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