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Digital Electronics

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

 16.
  255.
  8.
 256.

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Digital Electronics
A gate is disabled when its disable input is at logic 0. The gate is

 none of these
 AND
 NOR
 OR

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Digital Electronics
The binary equivalent of hexadecimal number 4F2D is

 0100 1111 0010 1100
 0100 1111 0010 1101
 0100 1110 0010 1101
 0101 1111 0010 1100

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Digital Electronics
9’s complement of 52784630 is

 47215369
 48225469
 58326479
 57316379

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Digital Electronics
An any or all gate is the other name of

 X-OR gate
 AND gate
 X-NOR gate
 OR gate

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Digital Electronics
The AND-OR realization of a combinational circuit requires three 3-input AND gates and one 3-input OR gate. This circuit can be designed using

 three 3-input OR gates and one 3-input AND gate
 four input NAND gates only
None of these
 three 3-input NAND gates and one 3-input NOR gate

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