Digital Electronics

Digital Electronics
A + Ā is equal to

0

A

Ā

1

0

A

Ā

1

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

< 6

< 12

< 25

< 20

< 6

< 12

< 25

< 20

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Digital Electronics
A device which converts 2421 code into 8421code is called a

code encoder

code decoder

code converter

coder

code encoder

code decoder

code converter

coder

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Digital Electronics
NOT gates are to be added to the inputs of which gate to convert it to a NAND gate?

X-OR

NOT

OR

AND

X-OR

NOT

OR

AND

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Digital Electronics
The time required for a gate to change its output is called as

start time

propagation time

run time

Decay time

start time

propagation time

run time

Decay time

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Digital Electronics
Which of the logical operations is represented by the + sign in Boolean algebra ?

NOT

NAND

OR

AND

NOT

NAND

OR

AND

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