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Microprocessor

Microprocessor
Which of the following is type declaration statement in C?

int bar
king = horse + 1
prin = prin * prin
s = s + 1

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Microprocessor
Which of the following conditions is not allowed in an RS latch?

R is negated, S is asserted
R is negated, S is negated
R is asserted, S is negated
R is asserted, S is asserted

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Microprocessor
In C the keywords are also called

Character words
Class words
Special words
Reserved words

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

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

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Microprocessor
Which one of the following interrupt/interrupts is/are only level triggering?

 TRAP
 RST 6.5
 RST 5.5
 both ‘a’ and ‘b’

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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.
 8 Mhz.
 2 Khz.
 2 Mhz.

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