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  2. Chess clock - Wikipedia

    en.wikipedia.org/wiki/Chess_clock

    An analog chess clock. A chess clock is a device that comprises two adjacent clocks with buttons to stop one clock while starting the other, so that the two clocks never run simultaneously. The clocks are used in games where the time is allocated between two parties. The purpose is to keep track of the total time each party takes and prevent ...

  3. Oregon Scientific - Wikipedia

    en.wikipedia.org/wiki/Oregon_Scientific

    Oregon Scientific, Inc. is a manufacturer of electronics including digital clocks, home weather stations, public alert monitors, fitness devices, toys and globes. The firm was started in 1989 in Portland, Oregon, United States. [1]

  4. Digital clock - Wikipedia

    en.wikipedia.org/wiki/Digital_clock

    Digital clocks typically use the 50 or 60 hertz oscillation of AC power or a 32,768 hertz crystal oscillator as in a quartz clock to keep time. Most digital clocks display the hour of the day in 24-hour format; in the United States and a few other countries, a commonly used hour sequence option is 12-hour format (with some indication of AM or PM).

  5. Binary clock - Wikipedia

    en.wikipedia.org/wiki/Binary_clock

    A binary clock is a clock that displays the time of day in a binary format. Originally, such clocks showed each decimal digit of sexagesimal time as a binary value, but presently binary clocks also exist which display hours, minutes, and seconds as binary numbers. Most binary clocks are digital, although analog varieties exist. True binary ...

  6. Talk:Digital clock - Wikipedia

    en.wikipedia.org/wiki/Talk:Digital_clock

    If it displays the time in digits, it is digital. You can count the cycles in the 60Hz electric power for either type of clock. Digital watches usually count the cycles of a vibrating crystal of quartz. That's mechanical! So would you say that digital watches are really analog? Of course not. Non-electronic digital clocks have been around for ...

  7. Clock - Wikipedia

    en.wikipedia.org/wiki/Clock

    Clocks have different ways of displaying the time. Analog clocks indicate time with a traditional clock face and moving hands. Digital clocks display a numeric representation of time. Two numbering systems are in use: 12-hour time notation and 24-hour notation. Most digital clocks use electronic mechanisms and LCD, LED, or VFD displays.

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