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Digital Electronics

Digital Electronics
Maximum number in decimal that can be represented by 4 bits (binary) is

 15
 4
 7
 16

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Digital Electronics
A computer has a word length of 8 bits (including sign). It is required to determine the range of integers that can be stored in the computer. If 1’s complement is used to represent the numbers, then the range will be

 -256 to 255
 -127 to 127
 -128 to 127
 -256 to 256

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Digital Electronics
What is mean by FPU

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

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Digital Electronics
The maximum positive and negative numbers that can be represented in one’s complement using n-bits are respectively

 +2n-1,-(2n-1-1)
 +(2n-1-1),-2n-1
 +(2n-1-1),-(2n-1-1)
 None of these

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Digital Electronics
10’s complement of 63325600 is

 36774400
 633256600
 36674400
 366744399

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Digital Electronics
Complement of NOR and OR gate is ________ and ________ respectively.

 OR, NOR
 AND, NAND
 NOR, OR
 NAND, AND

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