A bit is a unit of information that can be either a 0 or a 1. Computers organize collections of bits to represent information on a computer. For example, this web page is a (large) collection of bits. In addition, bits can be organized into packets and shipped across the Internet. Finally, the bits can be modified and transformed in to accomplish useful data processing results.
Sometimes a bit has a purpose, such as to indicate whether a condition is true (logic ‘1’) or false (logic ‘0’). For example, let’s assume your house or apartment has a system that controls the lights. A logic value is communicated to the light switch with a logic ‘1’ meaning the light should turn on and a logic ‘0’ meaning the light should turn off.
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