Subject

    Computer Science

    Topic

    Computer Hardware

    In digital logic, which logic gate is known as the 'universal gate' because it can be used to construct all other logic gates?

    a)
    AND
    b)
    OR
    c)
    XOR
    d)
    NAND

    Explanation

    Both NAND and NOR gates are universal gates. For example, a NOT gate can be made by connecting the inputs of a NAND gate together. An AND gate can be made by following a NAND gate with a NOT gate (which is another NAND gate). Similarly, an OR gate can also be constructed.

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