Definition: The most basic logical relationship is and, or, not, and the most basic logical gate is and, or gate and not gate. The realization of \"and\" operation is called and gate, the realization of \"or\" operation is called or gate, the realization of \"not\" operation is called not gate, also called inverter, and so on. A logic gate is a basic component on an integrated circuit (also known as an integrated circuit). Logic function: High and low levels can respectively represent the logical \"true\" and \"false\" or the 1 and 0 in binary, so as to achieve logical operations. Common logic gates include \"and\" gates, \"or\" gates, \"not\" gates, \"xOR\" gates (also known as mutually exclusive OR), and so on. Logic gates can be combined to perform more complex logic operations.