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Digital Electronics

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

 256.
 16.
  8.
  255.

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Digital Electronics
Number of 2 input multiplexers need to construct a 210 inputs multiplexer is _________

 129
 32
 9
 1023

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Digital Electronics
Which of the following memories uses one transistor and one capacitor as basic memory unit

 None
 SRAM
 Both SRAM and DRAM
 DRAM

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Digital Electronics
The most suitable gate to check whether the number of 1s in a digital word is even or odd is

 NAND
 X-OR
 AND, OR, and NOT
 NOR

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Digital Electronics
The set of which logic gates is designated as universal gate?

 NOT, OR , AND.
  NOR , NAND.
 XNOR, NOR, NAND.
 XNOR, NOR, NAND.

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Digital Electronics
In which code do the successive code characters differ in only one position?

 Gray code
 XS-3 code
 Hamming code
 8421 code

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