Microprocessor
A microprocessor is ALU

 and control unit on a single chip.
 register unit and I/O device on a single chip.
 register unit and control unit on a single chip.
 and memory on a single chip.

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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 wrong R is correct
Both A and R are correct and R is correct explanation of A
A is correct R is wrong

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Microprocessor
When referring to instruction words, a mnemonic is

 a short abbreviation for the data word stored at the operand address.
 a short abbreviation for the operand address.
 a short abbreviation for the operation to be performed.
 shorthand for machine language.

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