Hello Azka
Similar to decimal contains the symbol 0-9, binary contains only 0 and 1. Binary is the basis of digital circuits. Digital circuits in electronic devices are composed of switches, and the status of the switches can only be 'on' or 'off', representing '1' and '0' in binary, respectively. The binary digit is the minimum storage unit of a computer, which is also called bit. Bits can store only 0 or 1. To store additional information (such as larger decimal numbers), the electronic device connects these bits in series. If there are enough switches, the electronic device can use 0 and 1 to represent any content.
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