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Digital Electronics

Digital Electronics
The number of parity bits in a 12-bit Hamming code is

 6
 5
 4
 8

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Digital Electronics
Which of the following is a digital device

 Regulator of a fan
 Resistance of a material
 Light switch
 Microphone

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Digital Electronics
NOT gates are to be added to the inputs of which gate to convert it to a NAND gate?

 NOT
 OR
 AND
 X-OR

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Digital Electronics
In Boolean algebra, the bar sign (-) indicates ___________.

AND operation
None of these
OR operation
NOT operation

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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

 32 × 8
 16 × 16
 64 × 4
 256 × 1

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Digital Electronics
(11011) 2 in BCD 8421 code is

 11011001
 01101100
 00011011
 00100111

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