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Digital Electronics

Digital Electronics
A bubbled OR gate is equivalent to a

 NOR gate
 AND gate
 NAND gate
 X-OR gate

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Digital Electronics
What is the Boolean expression for a two-input AND gate ?

 A & B
 A - B
 A.B
 A + B

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Digital Electronics
In the boolean algebra, a variable has ________ different state(s)/value(s).

 2
 3
 4
 1

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Digital Electronics
For the design of a combinational circuit with four inputs using only NAND gates, the number of K-maps required for the simplification process is

 4
 2
 0
 1

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Digital Electronics
The most suitable gate for comparing two bits is

 OR
 X-OR
 NAND
 AND

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Digital Electronics
Most of the digital computers do not have floating point hardware because

It is not possible to perform floating point addition by hardware
Floating point hardware is costly
Of no specific reason
It is slower than software

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