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Digital Electronics

Digital Electronics
Which of the following represents (E3)16 ?

 (2BC)16-(1DE)16
 (1BC)16-(DE)16
 (1CE)16+(A2)16
 (200)16-(11D)16

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

NOT gate
EXCLUSIVE OR gate
OR gate
NAND gate

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Digital Electronics
Why small bubble is given on the output of the NAND gate symbol ?

 Open collector output
 Tristate
None of these
 Output is inverted

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Digital Electronics
ASCII code is a

 10-bit code
 8-bit code
 7-bit code
 5-bit code

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Digital Electronics
What is the minimum number of NAND gates required to realize an X-OR gate?

 6
 4
 3
 5

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Digital Electronics
The 2s complement of 17 is

  101111.
 110001.
 111110.
 101110.

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