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Digital Electronics

Digital Electronics
For 4 bit parallel addition, we need ________ half adder(s) and ________ full adder(s)

 1 and 3
 1 and 4
 0 and 3
 0 and 4

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Digital Electronics
The way of representing numbers in the form of 0s and 1s is called as

 Computer Notation
 Zeros Notation
 Binary Notation
 Ones Notation

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Digital Electronics
The output of a logic gate is 0 when all its inputs are at logic 1. The gate is either

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

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Digital Electronics
The logic expression A + B can be implemented by giving inputs A and B to a two-input

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

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Digital Electronics
For checking the parity of a digital word, it is preferable to use

 NAND gates
 NOR gates
 AND gates
 X-OR gates

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Digital Electronics
A gate is enabled when its enable input is at logic 0. The gate is

 NAND
 AND
 NOR
 none of these

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