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Digital Electronics

Digital Electronics
An EPROM is

 volatile
 non erasable
 programmable and erasable
 erasable but not programmable

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

 –1.5 V and – 5 V
 0 V and 5 V
 1 V and -5 V
 5 V and 0 V

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Digital Electronics
X' AND X' will result

 1
 X
 X power 2
 0

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Digital Electronics
Which of the following gates is known as a coincidence detector?

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

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Digital Electronics
When will be the output of an OR gate is LOW ?

 When any input is LOW
 When all input is LOW
 When any input is HIGH
 When all inputs are HIGH

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Digital Electronics
The number of parity bits in a 12-bit Hamming code is

 5
 8
 6
 4

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