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Microprocessor

Microprocessor
Which one of the following circuits transmits two messages simultaneously in one direction

 Diplex
 Duplex
 Simplex
 Quadruplex

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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

 8 Mhz.
 1Khz.
 2 Khz.
 2 Mhz.

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Microprocessor
Of the following circuits, the one which involves storage is

Mux
RS Latch
Decoder
Nand

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Microprocessor
Register pair used to indicate memory

 D and E
 H and L
 W and Z
 B and C

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Microprocessor
Which of the following interrupt is both level and edge sensitive?

 INTR
 RST 5.5
 TRAP
 RST 7.5

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Microprocessor
How many 16-bit special purpose registers are present in 8085 microprocessor?

 8
 6
 16
 2

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