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Digital Electronics

Digital Electronics
Which one of the following is 2’s complement of -68?

 01111100
 11000100
 00111100
 10111100

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Digital Electronics
F’s complement of (2BFD)Hex is

 C403
 D403
 D402
 E304

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Digital Electronics
One bit full adder has ________ outputs.

 any number
 2
 4
 3

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Digital Electronics
The number of rows in the truth table of a 4-input gate is

 16
 12
 8
 4

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Digital Electronics
The NAND gate is AND gate followed by ___________.

AND gate
OR gate
None of these
NOT gate

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Digital Electronics
Why generic array logic (GAL) device was invented ?

 One-time programmable
None of these
 Reprogrammable
 Mask programmable

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