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5. (2 marks) What is the purpose of an ALU (and some of its capabilities)?

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Purpose of ALU :-

1)ALU performs necessary arithmetical operation i.e addition, subtraction, multiplication, division etc on the data and ensures that instructions are obeyed.

2)It also performs logical operations like AND, OR etc.

3)ALU decodes the instructions to assembly language to perform the task.

4)It controls all the internal components of the CPU to work properly.

5)The ALU combined with control unit is called central processing unit.

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