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  2. Radio clock - Wikipedia

    en.wikipedia.org/wiki/Radio_clock

    Radio clock. A modern LF radio-controlled clock. A radio clock or radio-controlled clock (RCC), and often colloquially (and incorrectly [1]) referred to as an "atomic clock", is a type of quartz clock or watch that is automatically synchronized to a time code transmitted by a radio transmitter connected to a time standard such as an atomic clock.

  3. Time clock - Wikipedia

    en.wikipedia.org/wiki/Time_clock

    Time clock. A time clock, sometimes known as a clock card machine, punch clock, or time recorder, is a device that records start and end times for hourly employees (or those on flexi-time) at a place of business. In mechanical time clocks, this was accomplished by inserting a heavy paper card, called a time card, into a slot on the time clock.

  4. Kronos Incorporated - Wikipedia

    en.wikipedia.org/wiki/Kronos_Incorporated

    In 1979, Kronos delivered the world's first microprocessor-based time clock and, in 1985, delivered its first PC-based time and attendance product. In 1992, Kronos became a publicly-traded company on NASDAQ. Aron Ain, [6] succeeded his brother Mark Ain as chief executive officer in 2005. [7] In March 2007, Kronos went private again, bought out ...

  5. UKG - Wikipedia

    en.wikipedia.org/wiki/UKG

    Former Kronos CEO Aron Ain was the CEO and chairperson of the combined company until July 1, 2022, when he stepped down as CEO to become Executive Chairperson. [ 4 ] On February 20, 2020, Ultimate Software and Kronos Incorporated announced they agreed to form a new cloud computing venture specializing in workforce management and human capital ...

  6. History of timekeeping devices - Wikipedia

    en.wikipedia.org/wiki/History_of_timekeeping_devices

    Oscillating timekeepers are used in modern timepieces. Sundials and water clocks were first used in ancient Egypt c. 1200 BC (or equally acceptable BCE) and later by the Babylonians, the Greeks and the Chinese. Incense clocks were being used in China by the 6th century.

  7. RC circuit - Wikipedia

    en.wikipedia.org/wiki/RC_circuit

    These equations show that a series RC circuit has a time constant, usually denoted τ = RC being the time it takes the voltage across the component to either rise (across the capacitor) or fall (across the resistor) to within ⁠ 1 / e ⁠ of its final value. That is, τ is the time it takes V C to reach V(1 − ⁠ 1 / e ⁠) and V R to reach ...

  8. Howard Miller Clock Company - Wikipedia

    en.wikipedia.org/wiki/Howard_Miller_Clock_Company

    Howard Miller Clock Company was founded in 1926, as the Herman Miller Clock Company division of office furniture manufacturer Herman Miller, specializing in chiming wall and mantle clocks. [2] It was spun off in 1937 and renamed, under the leadership of Herman Miller's son Howard C. Miller (1905–1995). [ 3 ]

  9. RC time constant - Wikipedia

    en.wikipedia.org/wiki/RC_time_constant

    The RC time constant, denoted τ (lowercase tau), the time constant (in seconds) of a resistor–capacitor circuit (RC circuit), is equal to the product of the circuit resistance (in ohms) and the circuit capacitance (in farads): It is the time required to charge the capacitor, through the resistor, from an initial charge voltage of zero to ...

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