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Digital Electronics

Digital Electronics
What is the gray code for the binary 101011?

 011111
 111110
 110101
 101011

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Digital Electronics
The output of a logic gate is 1 when all its inputs are at logic 0. The gate is either

 an AND or an X-NOR
 an X-OR or an X-NOR
 an OR or a NAND
 a NAND or a NOR

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Digital Electronics
When an input signal 1 is applied to a NOT gate, the output is ___________.

1
None of these
Either 0 & 1

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Digital Electronics
AND operation of (79)10 & (-56)10 is

 50H
 08H
 48H
 42H

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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
Of no specific reason
Floating point hardware is costly

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Digital Electronics
The inputs of a NAND gate are connected together. The resulting circuit is ___________.

OR gate
None of these
NOT gate
AND gate

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