A Cache is a temporary storage area that computers and devices use to save copies of data for quicker access. In everyday terms, your web browser or app caches files (like images, scripts, or content) so that if you revisit a page, it can load faster instead of downloading everything again. From a user experience standpoint, caching helps improve performance and speed, which is critical — users expect fast load times and smooth interactions. For example, a news app might cache the latest articles when you have internet connection, so that if you open the app later offline or with a slow connection, you can still read those cached articles. However, caches can also sometimes lead to confusion if not managed well: a user might not see an updated piece of content because an old version is cached. Designers don’t directly control caching (it’s more a technical implementation), but they should be aware of it. For instance, they might design a refresh button or use subtle cues to indicate content is updating, ensuring users understand when they’re seeing cached (possibly older) information versus fresh data.