What is one key function of RAM in a computer system?

One key function of RAM (Random Access Memory) in a computer system is to provide temporary storage for active applications. RAM is crucial for system performance because it allows the CPU to quickly access and retrieve data that is actively being used or processed by applications and the operating system.

When a computer runs applications, it utilizes RAM to store the necessary data and instructions that those applications need to operate. Unlike hard drives or SSDs, which provide long-term storage, RAM is designed for speed, making it ideal for temporary storage where quick read and write capabilities are essential. This rapid access allows for smoother multitasking and quick execution of applications, ensuring that users have a responsive computing experience.

Other options like increasing processing power or storing operating system files do not accurately describe the direct role of RAM. While RAM does support the overall efficiency of the processing power indirectly, it does not enhance it on its own. Similarly, while operating system files reside on a storage device, they are loaded into RAM when needed but are not stored there permanently. Moreover, connecting to external devices pertains to hardware interfaces and is not a function of RAM.