Computer Memory

computers · technology · how-it-works · storage

Your Computer's Brain. Computer memory stores information that the computer needs to use immediately, kind of like how your brain holds thoughts you're thinking about right now instead of having to look them up in a book every time.

Super Fast Access. Memory is way faster than other storage on your computer, so the computer uses it for things it needs to access quickly, while slower storage like hard drives hold information you don't need instantly.

Instructions Live Here. When you open a program or click on something, the instructions for that program get loaded into memory so your computer can read and follow them at lightning speed.

Temporary Storage. Unlike a hard drive that keeps your files forever, memory is temporary and clears out when you turn off your computer, which is why you need to save your work to permanent storage.

Made of Tiny Switches. Computer memory is built from millions of tiny electronic switches that turn on and off to represent information as patterns of 1s and 0s.