Microprocessor
In 8085 name/names of the 16 bit registers is/are

 none of these.
 program counter.
 both A and B.
 stack pointer.

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Microprocessor
The interrupt facility is provided in microprocessor to

 keep a control on the working of the microprocessor
 stop the microprocessor when it starts malfunctioning
 change the sequence of the instructions being executed
 stop the microprocessor when desired

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