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Digital Electronics

Digital Electronics
To add two m-bit numbers, the required number of half adder is

 2m-1
 2m+1
 2m-1
 2m

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Digital Electronics
If in a base b number system, 54/4=13, the base of the number is

 7
 9
 6
 8

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Digital Electronics
The number of comparators in a parallel conversion type 8-bit analog to digital converter is

  8.
 256.
 16.
  255.

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Digital Electronics
A demultiplexer is a

 N-to-1 device
 N-to-N device
 1-to-N device
 1-to-1 device

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Digital Electronics
A ROM has a 16-bit address bus. The number of locations in this memory is

 1024
 32
 16
 65536

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Digital Electronics
The code used in digital systems to represent decimal digits, letters, and other special characters such as + , – , . , * , etc. is

 natural BCD
 octal
 hexadecimal
 ASCII

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