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Digital Electronics

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

 1
 4
 2
 3

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Digital Electronics
Which of the following gate is a two-level logic gate

OR gate
NAND gate
EXCLUSIVE OR gate
NOT gate

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Digital Electronics
Stack is also known as

 FIFO memory
 LILO memory
 LIFO memory
 Flash memory

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Digital Electronics
The number of rows in the truth table of a 4-input gate is

 16
 8
 4
 12

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Digital Electronics
How many flip flops are required to build a binary counter circuit to count from 0 to 1023?

 12.
 24.
  10.
  6.

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Digital Electronics
The following code is not a BCD code.

 Gray code
 XS-3 code
 all of these
 8421 code

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