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Digital Electronics

Digital Electronics
The logic expression A + B can be implemented by giving inputs A and B to a two-input

 X-NOR gate
 NAND gate
 NOR gate
 X-OR gate

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Digital Electronics
What is the logic which controls a stair case light associated with two switches A and B located at the bottom and top of the stair case respectively?

 AND
 X-OR
 OR
 X-NOR

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Digital Electronics
What will be Excess - 3 code for decimal ( 584 )?

  (0111 0100 1000).
  (1000 1011 0111).
 (1000 0111 1110).
 (1011 0111 1000).

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Digital Electronics
To get an excess-3 code from BCD code

 0011 is added
 0110 is added
 0011 is subtracted
 0110 is subtracted

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Digital Electronics
A combinational circuit can be designed using only

 NOR gates
 OR gates
 OR and X-NOR gates
 AND gates

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Digital Electronics
What is mean by FPU

 floating point unit
 floating point universal
 floating parallel unit
 floating parallel universal

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