Microprocessor
The data bus of any microprocessor is always

 Bi-directional
 Unidirectional
 None
 Either unidirectional or bi-directional

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Microprocessor
ALU (Arithmetic and Logic Unit ) of 8085 microprocessor consists of

 Accumulator, arithmetic, logic circuits and five flags
 Accumulator, arithmetic and logic circuits
 Accumulator, temporary register, arithmetic and logic circuits
 Accumulator, temporary register, arithmetic, logic circuits and five flags

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