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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Microprocessor
The interrupt facility is provided in microprocessor to

 keep a control on the working of the microprocessor
 stop the microprocessor when it starts malfunctioning
 stop the microprocessor when desired
 change the sequence of the instructions being executed

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Microprocessor
Which one of the following is not correct?

 An instruction is a set of bits that defines a computer operation
 Bus is a group of wires
 Bootstrap is a technique or device for loading first instruction
 An interrupt signal is required at the start of every program

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