Question
Which of the following is the function of the Central Processing Unit (CPU) in a computer?
This question was previously asked in
RRB NTPC 2024 CBT 1 Question Paper (28-Aug-2025) (Shift 3)
The correct answer is
It processes data and controls operations of all parts of the computer.
CPU Function Explained
The Central Processing Unit (CPU) is the brain of the computer. Its main job involves executing instructions and processing data.
Analyzing CPU Functions
Let's look at the role of the CPU based on the options:
- Option 1: Incorrect. While the CPU processes input, input devices (keyboard, mouse) are responsible for receiving input.
- Option 2: Incorrect. Permanent file storage is handled by storage devices like hard drives or SSDs, not the CPU.
- Option 3: Correct. The CPU's primary functions are to execute instructions (process data) and manage or control the operations of all other computer components.
- Option 4: Incorrect. Output devices (printers, monitors) handle displaying or sending output. The CPU sends commands, but the devices perform the final output action.
Therefore, the most accurate description of the CPU's function is processing data and controlling the computer's operations.
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