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Digital Electronics

Digital Electronics
Which of the following codes is known as the 8421 code?

 Gray code
 ASCII code
 XS-3 code
 BCD code

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Digital Electronics
Most of the digital computers do not have floating point hardware because

It is not possible to perform floating point addition by hardware
It is slower than software
Of no specific reason
Floating point hardware is costly

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Digital Electronics
A single flip-flop can be cleared (reset) to

 0
 1
 Both A and B
 None

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Digital Electronics
Which of the following is a digital device

 Light switch
 Microphone
 Regulator of a fan
 Resistance of a material

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Digital Electronics
An AND gate will function as OR if

Either of the inputs is “1”
All the inputs and outputs are complemente'
All the inputs are ‘0’
All the inputs to the gates are “1”

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Digital Electronics
In MSI, the number of gate circuits per chip is

 < 500
 50 to 100
 12 to 99
 < 50

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