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Microprocessor

Microprocessor
It is possible to copy a file in the same directory.

False
True

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Microprocessor
I)A total of about one million bytes can be directly addressed by the 8086 microprocessor II)8086 has thirteen 16-bit registers III)8086 has eight flags IV)Compared to 8086, the 80286 provides a higher degree of memory protection Which one of the statements given above are correct?

 1,2 & 3
 2,3&4
 1,3 &4
 1,2 & 4

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Microprocessor
While INX B instruction execute,

 all flags will be affected
 no flags will be affected
 only carry flag will be affected
 only carry and zero flags will be affected

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

 4
 5
 6
 3

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Microprocessor
In a microprocessor based system the stack is always in

 RAM
 microprocessor
 ROM
 EPROM

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Microprocessor
Identify the communication interfacing device from the following

 8255
 8155
 8257
 8251

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