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real-time clock

   Also found in: Acronyms, Wikipedia 0.02 sec.

real-time clock

An electronic circuit that maintains the time of day. It may also provide timing signals for timesharing operations. See NTP and BIOS.


real-time clock [′rēl ‚tīm ′kläk]
(computer science)
A pulse generator which operates at precise time intervals to determine time intervals between events and initiate specific elements of processing.


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The FM4005 device combines a real-time clock (RTC), low-VDD reset, watchdog timer, battery-backed event counter, lockable 64-bit serial number area, and general-purpose comparator that can be used for an early power-fail (NMI) interrupt or other purpose.
3][R] control, which adds many new capabilities, including: PID control, allowing accurate, responsive, and adjustable RH control; a temperature sensor that enables the controller to hold water at a preset temperature, allowing a rapid response to a call for humidity; data reports to monitor humidifier performance; easy-to-navigate, intuitive menus; easy-to-read backlit display; and a real-time clock that allows time-stamped alarm tracking and the ability to program draining at preset times.
There are four major points of failure for time and date issues: user applications; commands; application programming interfaces (APIs); and the interrupt structure provided by the BIOS, interval timer, and Real-Time Clock (RTC).
 
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