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Digital Electronics

Digital Electronics
The 7-bit Hamming code is used to transmit

 7 data bits
 4 data bits
 3 data bits
 no data bits

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Digital Electronics
The output of a gate is LOW if and only if all its inputs are HIGH. It is true for

 NOR
 X-NOR
 NAND
 AND

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Digital Electronics
A device which converts BCD into octal is called

 decoder
 demultiplexer
 code converter
 encoder

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Digital Electronics
1’s complement of 17 is

 11100.
 10111.
 10001.
  01110.

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Digital Electronics
Which of these circuits have higher gate complexity 1. Carry look ahead adder 2. Ripple carry adder

 1
 2
 both have same
 none

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Digital Electronics
Which one of the following even parity codes are in errors. (I)100110010 (II)011101010 (III)10111111010001010

 Only (II)
 Both (II)&(III)
 Both (I)&(III)
 Only (III)

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