COMPUTER SCIENCE AND ENGINEERING
DIGITAL LOGIC
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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True
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False
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Either A or B
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None of the above
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Detailed explanation-1: -NOT gates. A NOT gate uses just one input to generate one output. A NOT gate inverts the input-the output is 1 (TRUE) if the input is 0 (FALSE), and the output is 0 (FALSE) if the input is 1 (TRUE).
Detailed explanation-2: -Logic NOT gates provide the complement of their input signal and are so called because when their input signal is “HIGH” their output state will NOT be “HIGH”. Likewise, when their input signal is “LOW” their output state will NOT be “LOW”.
Detailed explanation-3: -An LED is an electronic device which will ON and off when it receives high voltage and low voltage respectively. When the switch is connected to +5 V, the switch is on position so the LED emits light. When the NOT gate is connected to Ground, the LED will OFF so it doesn’t emit any light.
Detailed explanation-4: -The standard NOT gate is given a symbol that is shaped like a triangle with a circle at the end, pointing to the right. This circle is known as an “invert bubble” and is used to represent the logical operation of the NOT function in the NOT, NAND and NOR symbols in their output.