Central Processing Unit (CPU)

Correct Answer: Low TDP

A low TDP (Thermal Design Power) typically means the CPU is more power efficient as it generates less heat and requires less cooling. High clock speed, overclocking capabilities, integrated graphics, large cache size, and multiple cores do not directly correlate to power efficiency.

Correct Answer: Upgrade to a CPU with more cores

Upgrading to a CPU with more cores is the best solution to improve multitasking performance. Multitasking involves running multiple applications simultaneously, and each application requires CPU resources. With more CPU cores, the system can handle more tasks concurrently, leading to better multitasking performance. Upgrading the GPU primarily benefits graphics-intensive tasks and may not significantly impact overall multitasking. Adding more RAM can help if the system is running out of memory, but it doesn't directly address the CPU bottleneck. Replacing the hard drive with an SSD can improve storage performance but has limited impact on multitasking if the CPU is the limiting factor.

Correct Answer: Hyperthreading

The correct answer is Hyperthreading. Hyperthreading is a technology developed by Intel that allows a single physical processor core to execute two separate threads simultaneously. This feature enables the processor to utilize its resources more efficiently by executing instructions from different threads concurrently on a single core. Explanation of other options: Multicore processing refers to the presence of multiple physical cores in a processor, not the ability of a single core to handle multiple threads. Clock boosting is a technique to temporarily increase the clock speed of a processor for improved performance, but it does not relate to concurrent thread execution. Parallel execution units are components within a processor that can perform multiple operations simultaneously, but they do not specifically enable different threads to run concurrently on a single core.