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Microprocessor

Microprocessor
The number of interrupt lines in 8085 is

4
2
5
3

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Microprocessor
A 37 bit mantissa has an accuracy of

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

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Microprocessor
S0 and S1 pins are used for

 serial communication
 indicating the processor’s status
 acknowledging the interrupt
None of these

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Microprocessor
A single instruction to clear the lower nibble of accumulator in 8085 language assembly is

 XRI FOH
 ANI OFH
 ANI F0H
 XRI 0FH

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Microprocessor
We say that a set of gates is logically complete if we can build any circuit without using any other kind of gates. Which of the following sets are logically complete

Set of {AND,OR,NOT}
Set of {AND,OR}
Set of {EXOR, NOT}
None of these

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Microprocessor
Identify the communication interfacing device from the following

 8255
 8257
 8155
 8251

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