![]() Your phone could have the fastest chip in the world and it would still feel slow without RAM. Your phone's main slower storage could potentially keep your OS and used apps running in the background, but it's much, much slower than RAM.That means apps would need to fully re-open, as if you opened them for the first time after turning on your phone, which causes a delay before you can use the app. If a phone didn't have RAM, apps would fully close whenever you switch apps.Switching between apps and picking up right where you left off is often called "multitasking." If a phone is said to multitask well, it's because it makes good use of RAM or simply has a ton of it.Essentially, apps you used are kept running in the background while you use other apps. When you return to an app you used a while ago, it'll open right where you left off, as if you never even left the app, because it's been stored in your phone's RAM.When you're finished with the app you're using, your phone keeps the app and whatever you were doing on it in your phone's RAM, even if you switch to another app.When you turn on your phone, and open an app for the first time, your phone pulls the operating system (OS) and app's data from your phone's slower main storage and stores the bulk of that OS and app data in your phone's faster RAM so you can use different elements and features of the OS and app quickly.It's much faster to pull something out of your pocket than it is to pull something out from your backpack. ![]() You can think of RAM as your pocket and your phone's main storage as your backpack.Here's how RAM works and what it does in your smartphone Account icon An icon in the shape of a person's head and shoulders.
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