## logical operation- A logical or Boolean operation on
*N*-state variables is one that yields a single*N*-state variable; e.g., a comparison on the 3-state variables*A*and*B*, each represented by -, 0, or +, which yields: - when*A*is less than*B*, 0 when*A*equals*B*, and + when*A*is greater than*B*. Specifically, operations such as AND, OR, and NOT on two state variables which occur in the algebra of logic; i.e. Boolean algebra. - Logical operations are the operations of logical shifting, masking, and other non-arithmetical operations of a computer.
## Related category• COMPUTERS, ARTIFICIAL INTELLIGENCE, AND CYBERNETICSSource: Van Nostrand's Scientific Encyclopedia, Fifth
Edition
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