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Microprocessor

Microprocessor
Which of the following is type declaration statement in C?

s = s + 1
prin = prin * prin
int bar
king = horse + 1

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Microprocessor
Identify the programmable interval timer from the following

 8253
 8279
 8275
 8252

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Microprocessor
In an 8085 microprocessor based system, the contents of SP are 1000H, PUSH B instruction will transfer the contents of registers B & C respectively for memory locations

 1000 H and 1001 H
 1000 H and 0FFF H
 0FFF H and 0FFE H
 0FFE H and 0FFF H

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Microprocessor
A mask programmed ROM is

 erasable electrically
 programmed at the time of fabrication
 programmed by the user
 erasable and programmable

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Microprocessor
Identify the programmable DMA controller from the following

 8279
 8251
 8253
 8257

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Microprocessor
A microprocessor without the interrupt facility

 is not useful for process control system
 is best suited for process control system
 cannot be interfaced with any I/O devices
 cannot be used for DMA operation

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