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Digital Electronics

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

 00001100
 01110011
 00000011
 00001000

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Digital Electronics
X + X.Y = ?

 Y
 X
 0
 1

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Digital Electronics
Which of the following is known as a mod-2 adder?

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

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Digital Electronics
The number FF in base-16 systems will be equal to ________ in binary system.

 11101110
 10011001
 10101010
 11111111

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Digital Electronics
The devices commonly used for making digital circuits are

 semiconductor devices
 relays
 contact switches
 mechanical switches

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Digital Electronics
The address bus with a ROM of size 1024 × 8 bits is

 10 bits
 8 bits
 16 bits
 12 bits

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