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Microprocessor

Microprocessor
A structure that stores a number of bits taken “together as a unit” is a

Register
Decoder
Mux
Gate

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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.
 8 Mhz.
 1Khz.
 2 Mhz.

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

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

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Microprocessor
How many segments are there in 8086?

 3.
 2.
 4.
 6.

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Microprocessor
The number of interrupt lines in 8085 is

5
3
4
2

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Microprocessor
While INX B instruction execute,

 only carry flag will be affected
 no flags will be affected
 all flags will be affected
 only carry and zero flags will be affected

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