3.4. Bits

A bit (short for “BInary digiT”) is a single on/off value. Only these two values are possible, though the two values may go by different names, such as true/false, or 1/0. There are many ways in which a bit can be implemented. Here are some ways that bits are implemented:

Computers do all of their processing in terms of bits - any piece of information a computer stores or manipulates is stored as a sequence of these on/off values. For different purposes, a computer may use any of the mechanisms listed above (or many others) to represent those bits.

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Materials on this page adapted with permission from from:
Introduction to Computer Science using Java by Bradley Kjell (CC BY-NC 3.0)
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