Microprocessor
Program counter in a digital computer

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

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Microprocessor
ALU (Arithmetic and Logic Unit ) of 8085 microprocessor consists of

 Accumulator, temporary register, arithmetic and logic circuits
 Accumulator, temporary register, arithmetic, logic circuits and five flags
 Accumulator, arithmetic and logic circuits
 Accumulator, arithmetic, logic circuits and five flags

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