Which of the following statements best defines the CPU? (1 Point) * The CPU outputs the raw computer data, including mathematical calculations and logical operations. The CPU controls the speed at which instructions are retrieved and processed in the computer. The CPU is responsible for storing data as it is being processed. The CPU retrieves the instructions of a computer program and the raw data that is input.
The Correct Answer and Explanation is:
The correct statement is: The CPU retrieves the instructions of a computer program and the raw data that is input.
Explanation:
The Central Processing Unit (CPU) is often referred to as the “brain” of the computer. It performs a wide range of tasks essential for the operation of the computer. However, its primary function is to retrieve instructions from memory (which is where programs and data are stored) and process these instructions, turning them into outputs or controlling further operations.
Here’s a breakdown of the other options:
- The CPU outputs the raw computer data, including mathematical calculations and logical operations.
- This is incorrect because the CPU doesn’t “output” raw data in the traditional sense. Instead, it performs operations on the data and sends the results to output devices or stores them in memory.
- The CPU controls the speed at which instructions are retrieved and processed in the computer.
- While the CPU does have a role in the speed of processing, the “control” of speed is more about the clock rate and is influenced by other components, such as the system clock and the architecture of the CPU.
- The CPU is responsible for storing data as it is being processed.
- This is also inaccurate. The CPU does not store data permanently; it processes it. Temporary data is stored in small, fast caches or registers inside the CPU during processing. Data storage for long-term use is handled by other components, such as the hard drive or solid-state drive (SSD).
- The CPU retrieves the instructions of a computer program and the raw data that is input.
- This is the most accurate statement. The CPU is responsible for fetching the instructions (program code) and data from memory, interpreting and processing them, and executing the necessary operations to perform the tasks required by the software.
In summary, the CPU fetches instructions and input data, processes them, and executes commands to carry out a program’s operations.
