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Digital Electronics

Digital Electronics
Excess-3 code is known as

Weighted code
Self-complementing code
Algebraic code
Cyclic redundancy code

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

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

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Digital Electronics
Which of the logical operations is represented by the + sign in Boolean algebra ?

 OR
 NAND
 NOT
 AND

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Digital Electronics
In Boolean algebra, the bar sign (-) indicates ___________.

OR operation
None of these
NOT operation
AND operation

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Digital Electronics
A 16-square eliminates

 3 variables
 4 variables
 2 variables
 8 variables

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