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Digital Electronics

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

 256 × 1
 32 × 8
 64 × 4
 16 × 16

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Digital Electronics
The number A = 01110000 and B = 10101111 are in 2’s complement form .Addition of above two number is

 10101111
 011100001
 11100000
 00011111

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Digital Electronics
The data bus width of a ROM of size 2048 × 8 bits is

 12
 16
 10
 8

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Digital Electronics
A full adder has

 2 inputs, 2 outputs
 3 inputs, 2 outputs
 3 inputs, 1 output
 2 inputs, 1 output

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Digital Electronics
8421 code is

 non-weighted code
 self-complementing code
 weighted code
 alphanumeric code

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Digital Electronics
The inverter is ___________

None of these
NOT gate
AND gate
OR gate

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