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Microprocessor

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

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

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Microprocessor
The first machine cycle of an instruction is always

 A memory write cycle
 An I/O read cycle
 A fetch cycle
 A memory read cycle

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Microprocessor
A microprocessor without the interrupt facility

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

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Microprocessor
Total number of instructions in 8085 microprocessor assembly language is

 245
 247
 246
 244

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Microprocessor
Number of Hex digits needed to represent the 20-bit address of a memory location are

 20
 16
 5
 4

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Microprocessor
How many T-states are required for execution of OUT 80H instruction?

 16
 13
 7
 10

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