How does upgrading RAM affect a PC's multitasking capabilities?

Upgrading RAM improves a PC's multitasking capabilities by allowing the system to handle a greater number of applications and processes simultaneously without a noticeable decline in performance. This is because RAM acts as a high-speed short-term memory storage for the system—when you have more RAM, the operating system can store more data and program variables in this fast-access memory.

In scenarios where a user runs multiple applications, such as a web browser, a video editor, and a word processor at the same time, having additional RAM means that the PC won't need to swap data in and out of the slower hard drive as frequently. This reduces the latency and lag often associated with managing multiple tasks, enabling smoother transitions and operations among running programs.

The other options do not directly relate to the impact of RAM on multitasking. For instance, while RAM may influence overall system performance, it does not directly increase graphics performance, significantly decrease boot times, or enhance hard drive speed—these aspects are reliant on other components like the GPU, SSD, and system architecture.