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Digital Electronics

Digital Electronics
The largest positive number that can be stored in a computer that has 16-bit word length and uses two’s complement arithmetic is

 65,536
 32
 32,768
 32,767

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Digital Electronics
NAND. gates are preferred over others because these

can be used to make any gate
have lower fabrication area
provide maximum density in a chip.
consume least electronic power

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Digital Electronics
The output of a NAND gate is low

 only when at least one input is high
 only when all the inputs are high
 only when all the inputs are low
 only when at least one input is low

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Digital Electronics
What is mean by FPU

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

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Digital Electronics
The number of 1 in 8-bit representation of 127 in 2’s complement form is m and that in 1,s complement form is n. What is the value of m:n?

 1:2
 1:1
 2:1
 2:3

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Digital Electronics
A ROM has a 16-bit address bus. The number of locations in this memory is

 16
 65536
 32
 1024

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