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Digital Electronics

Digital Electronics
The address bus with a ROM of size 1024 × 8 bits is

 16 bits
 12 bits
 10 bits
 8 bits

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Digital Electronics
A gate is enabled when its enable input is at logic 1. The gate is

 NOR
 none of these
 OR
 NAND

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Digital Electronics
Which of the following is a self-complementing code?

 Gray code
 XS-3 code
 Hamming code
 cyclic code

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Digital Electronics
Odd parity of a bit stream can be tested using ________ gate.

 AND
 NOR
 OR
 XOR

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Digital Electronics
What is the logic which controls a stair case light associated with two switches A and B located at the bottom and top of the stair case respectively?

 AND
 X-NOR
 OR
 X-OR

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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

 64 × 4
 32 × 8
 16 × 16
 256 × 1

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