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Digital Electronics

Digital Electronics
A device which converts BCD into octal is called

 demultiplexer
 code converter
 decoder
 encoder

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Digital Electronics
Which of the following shows the correct attachment of even parity bit to the data 00001001?

 000001001
 100001001
 000010010
 000010011

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Digital Electronics
Which of the following is 1’s complement representation of -34?

 10100010
 11011101
 11011110
 01011101

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Digital Electronics
In simplification of a Boolean function of n variables, a group of 2m adjacent 1s leads to a term with

 m – 1 literals less than the total number of variables
 m + 1 literals less than the total number of variables
 n + m literals
 n – m literals

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Digital Electronics
10’s complement of 63325600 is

 633256600
 366744399
 36774400
 36674400

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Digital Electronics
The voltages corresponding to LOW and HIGH levels respectively are given below. Identify the voltages which correspond to negative logic system.

 0 V and 5 V
 1 V and 5 V
 5 V and 0 V
 –1.5 V and – 0.5 V

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