# MCQ IN COMPUTER SCIENCE & ENGINEERING

## COMPUTER SCIENCE AND ENGINEERING

### DIGITAL LOGIC

 Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The only function of NOT gate is to ____
 A Stop signal B Invert input signal C Act as a universal gate D None of the above
Explanation:

Detailed explanation-1: -A NOT gate inverts the input signal which is the same as complementing a signal or changing the logic in a digital circuit. This means that when the input to the NOT gate is logic ‘0’, the output is logic ‘1’. However, it does not stop a signal.

Detailed explanation-2: -Inverting NOT gates are single input devicse which have an output level that is normally at logic level “1” and goes “LOW” to a logic level “0” when its single input is at logic level “1”, in other words it “inverts” (complements) its input signal.

Detailed explanation-3: -NOT gate. The simplest gate is the NOT gate, also known as an inverter. It accepts a single input and outputs the opposite value.

Detailed explanation-4: -Answer. Recall that a NOT gate inverts its input, meaning that if the input is 1, the output will be 0. Further, if the input is 0, the output will be 1. In other words, the input value is not the output.

Detailed explanation-5: -The NOT gate is a circuit which produces at its output the negated (inverted) version of its input logic. The circuit is also known as an inverter.

There is 1 question to complete.