Nor Logic Gate
by Science Photo Library
Title
Nor Logic Gate
Artist
Science Photo Library
Medium
Photograph - Photograph
Description
NOR logic gate, diagram. Logic gates are electrical circuits that are wired so as to produce a specific output according to logical rules. The diagram shows two inputs (A and B) and an output (Q). A NOR gate (OR plus NOT) reverses the operation of an OR gate and outputs on only if both its inputs are off, as shown in the table at lower right. The inputs here are both on, with the LED (light-emitting diode) at right in the off (unlit) state. The shape of the logic gate shown here is that of the NOR symbol used on circuit diagrams. For a series of diagrams of the seven basic logic gates (NOT, OR, AND, NOR, NAND, XOR and XNOR), see images C045/9800 to C045/9806.
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September 26th, 2019
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