Microprocessor
The interrupt facility is provided in microprocessor to

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

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Microprocessor
DS directive in 8085

Forces the assembler to reserve one byte of memory
Forces the assembler to reserve a specified number of consecutive bytes in the memory
None of these
Forces the assembler to reserve a specified number of bytes in the memory

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Microprocessor
Program counter in a digital computer

 Counts the numbers of programs run in the machine.
 Points the memory address of the next instruction to be fetched.
 Counts the number of times the loops are executed.
 Counts the number of times a subroutine is called.

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