COMPUTER SCIENCE AND ENGINEERING
DIGITAL LOGIC
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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NOR and NAND Gates
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XOR and XNOR Gates
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NOT and OR Gates
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None of the above
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Detailed explanation-1: -The OR, AND, and NOT are the three basic logic gates as they together can construct the logic circuit for any given Boolean expression. NOR and NAND gates have the property that they individually can be used to hardware-implement any logic circuit. For this reason, the NAND and NOR gates are called universal gates.
Detailed explanation-2: -∴ NAND and NOR gates are called universal gates because they can be combined to produce any of the other gates like OR, AND, and NOT gates.
Detailed explanation-3: -A universal gate is a gate which can implement any Boolean function without need to use any other gate type. The NAND and NOR gates are universal gates. In practice, this is advantageous since NAND and NOR gates are economical and easier to fabricate and are the basic gates used in all IC digital logic families.
Detailed explanation-4: -NAND Gate is called Universal Gates because all the other gates (NOT, AND, OR and NOR)can be created by using this gate.
Detailed explanation-5: -We have two universal gates – NAND gate and NOR gate.