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Digital Electronics

Digital Electronics
What will be the Boolean expression for an inverter logic gate, where input is A and output is G ?

 G = A
 A= G
 G = Ā
None of these

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Digital Electronics
The NOR gate can function as a NOT gate if

 all inputs are connected together
 one input is set to 1
 inputs are left open
 one input is set to 0

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Digital Electronics
A signed integer has been stored in a byte using 2’scomplement format. We wish to store the same integer in 16-bit word. We should copy the original byte to the less significant byte of the word and fill the more significant byte with

 1
 Complement of the MSB of the original byte
 0
 Equal to the MSB of the original byte

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Digital Electronics
The following code is not a BCD code.

 Gray code
 XS-3 code
 all of these
 8421 code

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Digital Electronics
If clock time period is 1ms, what is its frequency

 1 kHz
None of these
 1 mHz
 1 MHz

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Digital Electronics
Four ROM chips of 16 × 4 size have their address buses connected together. This system will be of size

 256 × 1
 64 × 4
 32 × 8
 16 × 16

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