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Microprocessor

Microprocessor
The number of status flags present in 8085 microprocessor are

 10
 16
 5
 8

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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.
 2 Mhz.
 8 Mhz.

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Microprocessor
Which of the following is not treated as hexadecimal constant by assembler in 8085?

234
6 AFH
45 H
64 H

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Microprocessor
An I/O processor controls the flow of information between

Main memory and I/O devices
Cache memory and I/O devices
Cache and main memory
Two I/O devices

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Microprocessor
It is possible to copy a file in the same directory.

False
True

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Microprocessor
The address bus of any microprocessor is always

 None
 Bi-directional
 Either unidirectional or bi-directional
 Unidirectional

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