Which are the four fundamental components of a computer system?

The four fundamental components of a computer system encompass the central processing unit (CPU), main memory, input devices, and output devices, which together enable the computer to perform tasks and process data effectively.

The CPU acts as the brain of the computer, executing instructions and managing operations. Main memory, often referred to as RAM, plays a crucial role by temporarily storing data and instructions that the CPU needs while performing tasks. Input devices, such as keyboards and mice, allow users to provide data to the computer, while output devices, like monitors and printers, present the results of the computer's processes to the user.

In summary, recognizing that the combination of these components is essential for a fully functioning computer system illustrates why the selection encompassing all of them is the only complete and accurate answer. Each component serves a distinct purpose, and together they form the backbone of computer operation.