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Microprocessor

Microprocessor
The clock speed of 8085 is

 3.2MHz.
 3.2KHz.
 1KHz.
 1MHz.

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Microprocessor
How many segments are there in 8086?

 6.
 2.
 4.
 3.

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Microprocessor
In 8085 microprocessor which one of the following statement is wrong

 there is a pin available for serial output
 serial I/O is possible through SIM and RIM instruction
 serial I/O is not possible
 there is a pin available for serial input

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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

 2 Khz.
 1Khz.
 8 Mhz.
 2 Mhz.

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Microprocessor
SPHL instruction copies the content of H-L register pair to the _________.

 B-C
 Stack Pointer
 D-E
 PSW

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Microprocessor
In Fortran 77 a variable name can contain special characters.

True
False

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