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Digital Electronics

Digital Electronics
A device which converts BCD into octal is called

 encoder
 code converter
 demultiplexer
 decoder

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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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Digital Electronics
The number of Boolean functions that can be generated by n variables is equal to

2n-1
2n
22n
2n

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Digital Electronics
Which of the following BCD codes with an odd parity bit included in the end of code group, have error in the code? (I)1001010110000 (II)0100011101100 (III)0111110000011 (IV)1000011000101

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

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Digital Electronics
If a counter having 10 flip flops is initially at 0, What count will if hold after 2060 pulses?

  000 000 1100.
 000 001 1100.
  000 000 1000.
 000 000 1110.

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Digital Electronics
10’s complement of 63325600 is

 366744399
 36674400
 36774400
 633256600

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