Boolean
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Booleans are a type of data type found in almost all major programming languages.
Possible states
Each boolean variable can represent one of two values:
- true
- false
Storage
Theoretically, a boolean only needs to take up 1 bit in memory, as it only stores two values: true or false - or 1 or 0.
In most programming languages, however, a boolean may use more than one bit. This is because of data structure alignment and data structure padding - it's faster for the CPU to access data when it's stored in the same region.