Microprocessor
The data bus of any microprocessor is always

 Unidirectional
 Bi-directional
 Either unidirectional or bi-directional
 None

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Microprocessor
The correct sequence of steps in the instruction cycle of a basic computer is

 Read effective address, Decode, Fetch and Execute.
 Fetch, Decode, Read effective address and, Execute.
 Fetch, Execute, Decode and Read effective address.
 Fetch, Read effective address, Decode and Execute.

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