Microprocessor
How can we make any bit of a register “1”?

 OR that bit with “0” and remaining bits with “1”.
 OR that bit with “1” and remaining bits with “0”.
 AND that bit with “0” and remaining bits with “1”.
 AND that bit with “1” and remaining bits with “0”.

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

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Microprocessor
In 8085 microprocessor system with memory mapped I/O, which of the following is true?

 Devices have 8-bit address line
 Devices are accessed using IN and OUT instructions
 Arithmetic and logic operations can be directly performed with the I/O data
 There can be maximum of 256 input devices and 256 output devices

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