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Digital Electronics

Digital Electronics
Maximum number in decimal that can be represented by 4 bits (binary) is

 15
 7
 16
 4

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Digital Electronics
Which of the following is a digital device

 Microphone
 Regulator of a fan
 Light switch
 Resistance of a material

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Digital Electronics
In MSI, the number of gate circuits per chip is

 < 50
 50 to 100
 < 500
 12 to 99

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

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

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Digital Electronics
What is/are the configurable functions of each and every IOBs connected around the FPGA device from the operational point of view?

Input operation
Tristate output operation
Bi-directional I/O pin access
All of these

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Digital Electronics
Which of the following is 2’s complement of +12?

 01110011
 00000011
 00001000
 00001100

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