MCQ IN COMPUTER SCIENCE & ENGINEERING

Previous
Next

COMPUTER SCIENCE AND ENGINEERING

DIGITAL LOGIC

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following gate types below is NOT considered a universal gate?a. XORb. NANDc. NORd. None of the above
A
B
C
D
Explanation: 

Detailed explanation-1: -Detailed Solution. OR-AND gate defined as a + b.c, this gate is NOT universal. Explanation: Universal Logic Gates:-In addition to the NOT, AND, OR, and XOR gates, three more common gates are available.

Detailed explanation-2: -You can’t derive an OR (or AND, NOR, NAND) gate from only XOR (or XNOR) gates, because they are not universal gates.

Detailed explanation-3: -Among the following, NAND gate is the universal gate.

Detailed explanation-4: -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.

There is 1 question to complete.
Previous
Next