Which component should be considered for upgrade if multiple applications cannot run simultaneously?

Upgrading the memory of a computer is an effective way to address issues related to running multiple applications simultaneously. When the system runs out of available RAM, it can struggle to manage multiple tasks at once, leading to performance slowdowns, application crashes, or the inability to open additional applications.

Memory serves as a short-term storage area where active processes and data are held, facilitating quick access by the CPU. If the available memory is insufficient, the system must resort to using virtual memory, which utilizes the hard drive to compensate for the lack of RAM, resulting in significantly slower performance.

By increasing the amount of memory, you allow more applications to operate concurrently without experiencing these slowdowns. This is particularly beneficial for users who run resource-intensive applications, such as graphic design software, virtual machines, or multiple browser tabs, as they often require a substantial amount of RAM to function efficiently. Upgrading the memory directly enhances the system's capability to multitask effectively.