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Microprocessor

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

RS Latch
Mux
Nand
Decoder

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Microprocessor
The instruction set of a microprocessor

 is stored inside the microprocessor
 is specified by the manufacturers
 cannot be changed by the user
 is specified by the user

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Microprocessor
Which of the following instruction is not possible in 8085?

 POP PSW
 POP 30 H
 POP D
 POP B

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Microprocessor
Identify the programmable DMA controller from the following

 8279
 8251
 8253
 8257

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Microprocessor
How many machine cycles are required for execution of IN 30H instruction

 6
 3
 4
 5

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Microprocessor
‘Burst refresh’ in DRAM is also called

None of these
Concentrated refresh
Hidden refresh
Distributed refresh

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