43. Which part of a computer system performs operations on data from all applications run by the computer?
Answer: B
The Central Processing Unit (CPU) performs operations on data from all applications run by the computer.
The CPU is the primary component of a computer that executes instructions from all applications, processing data and managing tasks efficiently.
A) Graphics processing unit (GPU)
The GPU is primarily responsible for rendering images and processing graphics-related computations. While it can handle some data processing tasks, it is not designed to perform operations on data from all applications, making it an incorrect choice for this question.
B) Central processing unit (CPU)
The CPU is the core component that performs calculations, executes instructions, and manages data from various applications running on the computer. This makes it the correct answer, as it directly handles operations on all data processed by the system.
C) Random-access memory (RAM)
RAM serves as temporary storage for data and instructions that the CPU needs to access quickly. However, it does not perform operations on data; it merely holds it for the CPU to process, thus making it an incorrect option.
D) Read-only memory (ROM)
ROM is used to store firmware and software that are not intended to be modified frequently. It is not involved in performing operations on data from applications, which renders this option incorrect as well.
Conclusion
The CPU is the definitive component that performs operations on data from all applications, making it the correct answer. Other components like the GPU, RAM, and ROM have specific roles that do not encompass the broader task of executing instructions and processing data across applications, thus failing to meet the requirement of the question.