An OR Gate is a basic digital logic gate that outputs true or high (1) when at least one of its inputs is true. It is commonly used in electronic circuits to perform logical operations. The OR gate can have two or more inputs, and its output is true if any of the inputs are true. In a truth table for an OR Gate, the output is true when one or more inputs are true. For example, if both inputs are false (0), the output is false (0). If either input is true (1), the output becomes true (1). This simple functionality makes OR gates essential in computer systems and digital electronics.