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Microprocessor

Microprocessor
Pick out the matching pair

 READY; RIM
 SID; SIM
 S0;S1;wait status
 HOLD; DMA

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Microprocessor
The timing difference between a slow memory and fast processor can be resolved if

Either A or B
Neither A nor B
External buffer is used
Processor is capable of waiting

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Microprocessor
The frequency of the driving network connected between pins 1 and 2 of 8085 microprocessor is

None of these
 four times the desired frequency
 twice the desired frequency
 equal to the desired frequency

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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 Mhz.
 8 Mhz.
 2 Khz.
 1Khz.

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Microprocessor
A bus connected between the CPU and main memory that permits transfer of information between main memory and the CPU is known as

 DMA bus
 Memory bus
 Address bus
 Control bus

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Microprocessor
Maximum of how many devices can be connected simultaneously to the microprocessor via 8257 in DMA data transfer mode?

 8
 10
 6
 4

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