What is a cache? A complete guide to caches and their important uses on your computer, phone, and other devices

The cache is an important part of your computer.
The cache is an important part of your computer.

Crystal Cox/Business Insider

  • A cache is a special storage space for temporary files that makes a device, browser, or app run faster and more efficiently. 

  • After opening an app or website for the first time, a cache stashes files, images, and other pertinent data on your device.

  • Cached data is used to quickly load an app or website for every subsequent visit.

  • Visit Business Insider’s Tech Reference library for more stories.

If you’ve ever troubleshooted something on your computer or cleaned up your browsing history, you’ve most likely come across advice related to the cache (pronounced “cash”). 

Most likely, you’ve been prompted to clear it. 

But what is a cache, and why would you want to do that? Here’s everything you should know about caches and why they’re crucial to modern technology. 

What is a cache?

A cache is

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