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Digital Electronics

Digital Electronics
Which number system has a base of 16

 Hexadecimal
 Decimal
 None
 Octal

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Digital Electronics
The maximum positive and negative numbers which can be represented in two’s complement form using n bits are respectively,

 +(2n-1-1),-(2n-1-1)
 +(2n-1-1),-2n-1
 +2n-1,-(2n-1+1)
 +2n-1,-2n-1

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Digital Electronics
NAND. gates are preferred over others because these

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

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Digital Electronics
An EPROM is

 programmable and erasable
 volatile
 non erasable
 erasable but not programmable

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Digital Electronics
A demultiplexer is a

 N-to-N device
 N-to-1 device
 1-to-N device
 1-to-1 device

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Digital Electronics
The number of Boolean functions that can be generated by n variables is equal to

2n
2n
2n-1
22n

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