The "Logical OR" is a fundamental operation in computer science and mathematics that evaluates two or more conditions. It returns true if at least one of the conditions is true. For example, in a simple expression like A OR B, the result is true if either A is true, B is true, or both are true. In programming, the Logical OR is often represented by the symbol ||. This operator is commonly used in conditional statements to control the flow of a program. For instance, if a user is allowed access if they meet either condition X or Y, the statement would evaluate to true if either condition is satisfied.