Microprocessor
Which one of the following is not correct?

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

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Microprocessor
Assertion (A): Negative values of incremental operator in DO loop are allowed in Fortran 77 but not in earlier versions of Fortran. Reason (R): Fortran 77 has better array facilities than earlier versions of Fortran.

Both A and R are correct but R is not correct explanation of A
A is correct R is wrong
Both A and R are correct and R is correct explanation of A
A is wrong R is correct

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