Digital Electronics - Digital Concepts

Exercise : Digital Concepts - General Questions
6.
What is a digital-to-analog converter?
It takes the digital information from an audio CD and converts it to a usable form.
It allows the use of cheaper analog techniques, which are always simpler.
It stores digital data on a hard drive.
It converts direct current to alternating current.
Answer: Option
Explanation:
A DAC converts an abstract finite-precision number (usually a fixed-point binary number) into a concrete physical quantity (e.g., a voltage or a pressure).

7.
What are the symbols used to represent digits in the binary number system?
0,1
0,1,2
0 through 8
1,2
Answer: Option
Explanation:
No answer description is available. Let's discuss.

8.
A full subtracter circuit requires ________.
two inputs and two outputs
two inputs and three outputs
three inputs and one output
three inputs and two outputs
Answer: Option
Explanation:
No answer description is available. Let's discuss.

9.
The output of an AND gate is LOW ________.
all the time
when any input is LOW
when any input is HIGH
when all inputs are HIGH
Answer: Option
Explanation:
No answer description is available. Let's discuss.

10.
Give the decimal value of binary 10010.
610
910
1810
2010
Answer: Option
Explanation:
No answer description is available. Let's discuss.