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Digital Electronics

Digital Electronics
Which number system has a base of 16

 None
 Hexadecimal
 Decimal
 Octal

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Digital Electronics
In which of the following codes do the successive characters differ in only 1-bit position?

 binary code
 cyclic code
 8421 code
 2421 code

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Digital Electronics
In Boolean algebra, OR is represented by

 ×
 /
 +
 -

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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

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

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Digital Electronics
The output of a logic gate is 1 when all its inputs are at logic 0. The gate is either

 an X-OR or an X-NOR
 an OR or a NAND
 a NAND or a NOR
 an AND or an X-NOR

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Digital Electronics
A device which converts BCD into octal is called

 demultiplexer
 encoder
 code converter
 decoder

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