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Microprocessor

Microprocessor
The number of status flags present in 8085 microprocessor are

 10
 5
 16
 8

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Microprocessor
I)A total of about one million bytes can be directly addressed by the 8086 microprocessor II)8086 has thirteen 16-bit registers III)8086 has eight flags IV)Compared to 8086, the 80286 provides a higher degree of memory protection Which one of the statements given above are correct?

 1,2 & 3
 2,3&4
 1,3 &4
 1,2 & 4

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Microprocessor
The data bus of any microprocessor is always

 Either unidirectional or bi-directional
 Unidirectional
 Bi-directional
 None

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Microprocessor
IC 7485 cannot be cascadeD.

False
True

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Microprocessor
While using a frequency counter for measuring frequency, two modes of measurement are possible: Period time Frequency mode There is a ‘cross-over frequency’ below which the period mode is preferred. Assuming the crystal oscillator frequency to be 4MHz, the crossover frequency is given by

 1Khz.
 2 Khz.
 8 Mhz.
 2 Mhz.

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Microprocessor
The character set of Fortran 77 includes lower case alphabets a to z.

False
True

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