Which among the following statements is **incorrect** about Central Processing Unit (CPU)?

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**Solution:**

1. The **Arithmetic Logic Unit (ALU)** performs arithmetic and logical operations but does **not** handle input, signal conversion, or data storage.

2. The statement that ALU is responsible for taking input, converting it into a signal, and storing it is **incorrect**. These tasks are handled by other components such as input/output units and memory.

3. The **Control Unit (CU)** controls the order of instruction execution and manages operation sequences.

4. The ALU is known as the **mathematical brain** of the computer because it performs all calculations.

**Answer:** Statement 2 is incorrect.

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