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Digital Electronics

Digital Electronics
The 2s complement of 17 is

 110001.
 101110.
  101111.
 111110.

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Digital Electronics
What is the minimum number of two-input NAND gates used to perform the function of 2-input OR gate?

 three
 two
 one
 four

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Digital Electronics
A hexadecimal odometer displays F 52 F. The next reading will be

F52E
F53F
G52F
F53O

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Digital Electronics
The maximum positive and negative numbers which can be represented in two’s complement form using n bits are respectively,

 +(2n-1-1),-(2n-1-1)
 +2n-1,-2n-1
 +(2n-1-1),-2n-1
 +2n-1,-(2n-1+1)

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Digital Electronics
A Binary number system has how many digits.

 10
 0
 1
 2

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Digital Electronics
Excess-3 code is known as

Self-complementing code
Algebraic code
Cyclic redundancy code
Weighted code

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