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Digital Electronics

Digital Electronics
A number system with radix 2 is known as

 Hexadecimal
 Decimal
 Octal
 Binary

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Digital Electronics
What is the minimum number of NAND gates required to realize an X-OR gate?

 5
 6
 4
 3

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Digital Electronics
Which of the following is a digital device

 Light switch
 Resistance of a material
 Regulator of a fan
 Microphone

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Digital Electronics
The number of digit 1 present in the binary representation of (3 × 512 + 7 × 64 + 5 × 8 + 3) is

 9
 8
 7
 6

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Digital Electronics
The logic expression A + B can be implemented by giving inputs A and B to a two-input

 NOR gate
 X-OR gate
 X-NOR gate
 NAND gate

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Digital Electronics
The decimal equivalent of the highest possible address for an 8-bit address bus is

 8
 128
 255
 256

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