Final answer:
Functional upgrades improve functionality, while cosmetic upgrades enhance appearance.
Step-by-step explanation:
Functional upgrades improve the functionality or performance of a system, while cosmetic upgrades enhance the appearance or aesthetics of a system. Both functional and cosmetic upgrades are important for a well-rounded system, as they serve different purposes.
For example, in a computer system, a functional upgrade could be increasing the RAM or upgrading the processor, which improves the overall performance. On the other hand, a cosmetic upgrade could be adding RGB lighting or a glass side panel, which enhances the visual appeal of the system.
While functional upgrades are often considered more important, as they directly impact the system's operation, cosmetic upgrades should not be overlooked. The importance of each upgrade depends on the specific needs and preferences of the individual.