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Digital Electronics

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

 2
 3
 1
 4

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Digital Electronics
The data bus width of a ROM of size 2048 × 8 bits is

 12
 16
 8
 10

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Digital Electronics
To get an excess-3 code from BCD code

 0110 is added
 0011 is subtracted
 0110 is subtracted
 0011 is added

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Digital Electronics
A three-state buffer has the following output states

 Both A and B
 High, Low, Float
 Set, Reset, Halt
 1, 0, float

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Digital Electronics
The output of a gate is HIGH when at least one of its inputs is LOW. It is true for

 X-OR
 NAND
 NOR
 OR

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Digital Electronics
Odd parity of a bit stream can be tested using ________ gate.

 XOR
 OR
 NOR
 AND

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