Microprocessor
Which one of the following is not correct?

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

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Microprocessor
Ready pin of microprocessor is used

 to introduce wait state
 to provide direct memory access
 to indicate that microprocessor is ready to receive outputs
 to indicate that microprocessor is ready to receive inputs

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