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Digital Electronics

Digital Electronics
What is the minimum number of 2 input NAND gates used to perform the function of 2 input OR gate

 1
 3
 4
 2

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Digital Electronics
A binary number system is of base ________

 10
 1
 2
 4

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Digital Electronics
2's Complement of 10101011 is

 10101011
 01010101
 10101100
 00111100

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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

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

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

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

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Digital Electronics
A Binary number system has how many digits.

 1
 2
 0
 10

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