Digital Electronics - Describing Logic Circuits

Exercise : Describing Logic Circuits - General Questions
1.
The format used to present the logic output for the various combinations of logic inputs to a gate is called a(n):
truth table.
input logic function.
Boolean constant.
Boolean variable.
Answer: Option
Explanation:
No answer description is available. Let's discuss.

2.
What is the basic difference between AHDL and VHDL?
ADHL is used in all PLD's.
VHDL is used in all PLD's.
ADHL is proprietary.
VHDL is proprietary.
Answer: Option
Explanation:
No answer description is available. Let's discuss.

3.
A small circle on the output of a logic gate is used to represent the:
Comparator operation.
OR operation.
NOT operation.
AND operation.
Answer: Option
Explanation:
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4.

For a three-input OR gate, with the input waveforms as shown below, which output waveform is correct?

a
b
c
d
Answer: Option
Explanation:
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5.

Which of the figures given below represents a NOR gate?

a
b
c
d
Answer: Option
Explanation:
No answer description is available. Let's discuss.