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Electronics and Communication Engineering - Digital Electronics

Exercise : Digital Electronics - Section 4
1.
A multilevel decoder is more costly as compared to single level decoder.
True
False
Answer: Option
Explanation:

A multi level decoder may be cheaper than single level decoder.

2.
EPROM can be
UVPROM
EEPROM
both UVPROM and EEPROM
none of the above
Answer: Option
Explanation:

Both ultra violet and electric pulses are used for erasing.

3.
A full subtractor has a total of
2 inputs
3 inputs
4 inputs
5 inputs
Answer: Option
Explanation:

4.
The function of interface circuit is
to match output conditions of driver with input conditions of load device
to match output conditions of load device with input conditions of driver
both (a) and (b)
neither (a) nor (b)
Answer: Option
Explanation:

Output of driver stage has to be matched with input of load.

5.
127416 - 3A716 = __________ .
ACA16
ACB16
ECD16
AAA16
Answer: Option
Explanation:

Convert to decimal, subtract and change the result to hexadecimal.

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