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Digital Electronics

Digital Electronics
Which of the following operations is commutative but not associative?

 AND
 X-OR
 NAND
 OR

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Digital Electronics
Excess-3 code is known as

Cyclic redundancy code
Algebraic code
Weighted code
Self-complementing code

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Digital Electronics
Which of the following memories uses one transistor and one capacitor as basic memory unit

 Both SRAM and DRAM
 None
 DRAM
 SRAM

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

 1
 4
 3
 2

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Digital Electronics
Which of the following is a digital device

 Regulator of a fan
 Microphone
 Resistance of a material
 Light switch

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Digital Electronics
Minimization of logical expressions while designing digital systems helps in reducing

 power requirements
 cost
All of these
 space requirements

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