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Digital Electronics

Digital Electronics
The number of Boolean functions that can be generated by n variables is equal to

2n
2n
2n-1
22n

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Digital Electronics
A 32 × 10 ROM contains a decoder of size

 32 × 32
 5 × 32
 32 × 10
 10 × 32

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Digital Electronics
The XS-3 code is a

 weighted code
 cyclic code
 error-correcting code
 self-complementing code

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Digital Electronics
Which of the following gate is a two-level logic gate

EXCLUSIVE OR gate
NOT gate
NAND gate
OR gate

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Digital Electronics
Why decoder is used in the digital electronics ?

 It is used to separate address bus and data bus
 To convert non coded information into coded form
 To convert coded information into non coded form
None of these

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Digital Electronics
The hex address of the 256th memory location is

 00100
 00FFF
 000FF
 001FF

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