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Digital Electronics

Digital Electronics
Convert the binary number (1111000011110000) to hexadecimal number

 5050
 7070
 F0F0
 1010

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Digital Electronics
Which of the following shows the correct attachment of even parity bit to the data 00001001?

 000010011
 000001001
 000010010
 100001001

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Digital Electronics
The Quine– McClusky method of minimization of a logic expression is a (i) graphical method (ii) algebraic method (iii) tabular method (iv) a computer-oriented algorithm The correct answers are

 (ii) and (iv)
 (i) and (ii)
 (i) and (iii)
 (iii) and (iv)

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Digital Electronics
The 1’s complement of 11010111 is

 00101000
 10101000
 11101000
 10101000

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Digital Electronics
A device which converts decimal number into BCD form is called

 multiplexer
 encoder
 code converter
 decoder

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Digital Electronics
An X-OR gate gives a high output

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

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