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Digital Electronics

Digital Electronics
How many NOR gates are required to obtain AND operation?

 2
 3
 4
 1

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Digital Electronics
Which of the following is equivalant to an ODD function

 NOR
 AND-NOR
 XOR
 XNOR

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

 256
 8
 128
 255

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Digital Electronics
Truth table is used to express

 Boolean map
 Boolean addition
 Boolean expression
 Boolean matrix

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Digital Electronics
The voltages corresponding to LOW and HIGH levels respectively are given below. Identify the voltages which correspond to negative logic system.

 –1.5 V and – 0.5 V
 0 V and 5 V
 5 V and 0 V
 1 V and 5 V

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Digital Electronics
The binary number 110011.11 is equivalent to decimal number

 50.75
 51.65
 51.75
 50.65

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