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Digital Electronics

Digital Electronics
(1D)16 in BCD 8421 code is

 00011111
 00100100
 00011101
 00101001

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Digital Electronics
The most suitable gate for comparing two bits is

 NAND
 OR
 AND
 X-OR

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Digital Electronics
In binary number system the first digit (bit) from right to left is called as

 Last Bit
 LSB, Least Significant Bit
 First Bit
 MSB, Most Significant Bit

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Digital Electronics
A device which converts 2421 code into 8421code is called a

 code encoder
 code converter
 coder
 code decoder

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Digital Electronics
11001, 1001 and 111001 correspond to the 2’scomplement representation of the following set of numbers

 -25, -9 and -57 respectively
 25, 9 and 57 respectively
 -7, -7 and -7 respectively
 -6, -6 and -6 respectively

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Digital Electronics
What logic function is produced by adding an inverter to each input and output of an OR gate?

 NAND
 AND
 X-OR
 NOR

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