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Microprocessor

Microprocessor
DMA signal/signals in 8085 is/are

 READY.
 HOLD.
 HLDA.
 All.

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Microprocessor
Which of the data transfer is not possible in microprocessor

 accumulator to memory
 I/O device to accumulator
 memory to memory
 memory to accumulator

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Microprocessor
A 37 bit mantissa has an accuracy of

6 decimal places
10 decimal places
8 decimal places
11 decimal places

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Microprocessor
The operating modes of 8255 A are called

Mode 0, mode 2 and mode 3
Mode 0, mode 1 and mode 2
Mode 0 and mode 1
Mode 0 and mode 2

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Microprocessor
The minimum number of transistors required to implement a two input AND gate is

6
2
8
4

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

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

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