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After four pomodori are done, take a long break (typically 20 to 30 minutes) instead of a short break. Once the long break is finished, return to step 2. For the purposes of the technique, a pomodoro is an interval of work time. [1] A goal of the technique is to reduce the effect of internal and external interruptions on focus and flow.
The HPET specification does not define the timer frequency, only requiring a minimum of 10 MHz; the actual frequency is provided to the operating system by a hardware register giving the number of femtoseconds per period (with an upper bound of 100 000 000 fs). A popular value is 14.3 18 MHz, 12 times the standard 8254 frequency of 1.193 18 MHz.
The Intel 8253 PIT was the original timing device used on IBM PC compatibles.It used a 1.193182 MHz clock signal (one third of the color burst frequency used by NTSC, one twelfth of the system clock crystal oscillator, [1] therefore one quarter of the 4.77 MHz CPU clock) and contains three timers.
A typical kitchen timer. A timer or countdown timer is a type of clock that starts from a specified time duration and stops upon reaching 00:00. An example of a simple timer is an hourglass. Commonly, a timer triggers an alarm when it ends. A timer can be implemented through hardware or software.
The timer may switch equipment on, off, or both, at a preset time or times, after a preset interval, or cyclically. A countdown time switch switches power, usually off, after a preset time. A cyclical timer switches equipment both on and off at preset times over a period, then repeats the cycle; the period is usually 24 hours or 7 days.
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A prescaler is an electronic counting circuit used to reduce a high frequency electrical signal to a lower frequency by integer division.The prescaler takes the basic timer clock frequency (which may be the CPU clock frequency or may be some higher or lower frequency) and divides it by some value before feeding it to the timer, according to how the prescaler register(s) are configured.
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