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    In this video, Karen teaches how decade counters work. They are integrated circuits that use logic gates, flip flops, and a clock signal to cascade a high output signal across ten outputs. Decade counters typically may count in one of three binary methods, decade, BCD, or bi-quinary. They can be used to control 7-segment displays, an array of LEDs, and more. Follow along as Karen explains all of these concepts and the internal workings of decade counters.