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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.
The High Precision Event Timer (HPET) is a hardware timer available in modern x86-compatible personal computers. Compared to older types of timers available in the x86 architecture, HPET allows more efficient processing of highly timing-sensitive applications, such as multimedia playback and OS task switching .
An astronomical (or astronomic) timer calculates dawn and dusk times (tracking the sun position) for each day of the year based on the latitude and longitude (or just north/central/south and time zone on more cheaply made ones), and the day of the year (month and date), programmed by the user upon installation in addition to the usual time of day, except in the case of GPS enabled astronomic ...
The act of restarting a watchdog timer is commonly referred to as kicking [a] the watchdog. [3] [4] In electronic watchdogs, kicking is typically done by writing to a watchdog control port or by setting a particular bit in a register. Alternatively, some tightly coupled [b] watchdog timers are kicked by executing a special machine language ...
In 1972, Signetics originally released the 555 timer in DIP-8 and TO5-8 metal can packages, and the 556 timer was released in a DIP-14 package. [4] In 2006, the dual 556 timer was available in through-hole packages as DIP-14 (2.54 mm pitch), [21] and surface-mount packages as SO-14 (1.27 mm pitch) and SSOP-14 (0.65 mm pitch).
Digital egg timer with animated falling sand Egg timer of the traditional hourglass type An egg timer or kitchen timer is a device whose primary function is to assist in timing during cooking; the name comes from the first timers initially being used for the timing of cooking eggs .
The original technique has six steps: [4] Decide on the task to be done. Set the Pomodoro timer (typically for 25 minutes). [1] Work on the task. End work when the timer rings and take a short break (typically 5–10 minutes). [5] Go back to Step 2 and repeat until you complete four pomodori.
The TT-30, [b] commonly known simply as the Tokarev, is a Soviet semi-automatic pistol.It was developed during the late 1920s by Fedor Tokarev as a service pistol for the Soviet Armed Forces and was based on the earlier pistol designs of John Moses Browning, albeit with detail modifications to simplify production and maintenance. [13]