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Digital Electronics

Digital Electronics
Which of these circuits will give yield carry with more delay 1. Carry look ahead adder 2. Ripple carry adder

 both are same
 none
 1.
 2.

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Digital Electronics
In LSI, the number of gate circuits per chip is

 < 10,000
 100 to 9,999
 1000 to 10,000
 100 to 999

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Digital Electronics
What logic function is produced by adding an inverter to each input and output of an AND gate?

 NAND
 OR
 X-OR
 NOR

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

 4
 2
 1
 3

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Digital Electronics
Most of the digital computers do not have floating point hardware because

It is not possible to perform floating point addition by hardware
It is slower than software
Floating point hardware is costly
Of no specific reason

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Digital Electronics
A 10 bit A/D conveter is used to digitize an analog signal in the 0 to 6 volt. The maximum peak to ripple voltage that can be allowed in the D.C. supply voltage is

  5.85 mV.
 10 mV.
 5 mV.
  6 mV.

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