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Digital Electronics

Digital Electronics
NOT gates are to be added to the inputs of which gate to convert it to a NAND gate?

 AND
 OR
 NOT
 X-OR

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Digital Electronics
Slowest memory element is

 ROM
 RAM
 Hard Drive
 Cache

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Digital Electronics
Temperature variation is a/an

 Digital quantity
 Analog quantity
 None
 Either Digital or Analog quantity

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Digital Electronics
Which of the following is 1’s complement representation of +57

 00111001
 00000001
 11000110
 01000110

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Digital Electronics
What is the gray code for the binary 101011?

 111110
 011111
 110101
 101011

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Digital Electronics
Which one of the following is an invalid state in 8-4-2-1 binary coded decimal counter

 1001
 0011
 1100
 1000

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