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Digital Electronics

Digital Electronics
A device which converts BCD into octal is called

 encoder
 decoder
 demultiplexer
 code converter

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Digital Electronics
An X-OR gate gives a high output

 if it has even number of 0s
 for odd decimal value.
 if there are odd number of 1s
 if the decimal value of digital word is even

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Digital Electronics
The output of a gate is HIGH when at least one of its inputs is LOW. It is true for

 NAND
 NOR
 OR
 X-OR

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Digital Electronics
A full adder has

 3 inputs, 1 output
 3 inputs, 2 outputs
 2 inputs, 1 output
 2 inputs, 2 outputs

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Digital Electronics
The data bus width of a ROM of size 2048 × 8 bits is

 16
 8
 10
 12

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Digital Electronics
A signed integer has been stored in a byte using 2’scomplement format. We wish to store the same integer in 16-bit word. We should copy the original byte to the less significant byte of the word and fill the more significant byte with

 1
 Equal to the MSB of the original byte
 Complement of the MSB of the original byte
 0

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