ROM

The Fundamentals of Computer Storage and Memory All computers use two kinds of memory to work: memory and storage. Memory is fast and temporary, while storage keeps your files even when the power is off. Understanding how they differ helps you pick devices and predict how a computer will behave. Memory basics: RAM, or random access memory, holds the data a program is actively using. It is fast but limited in size. When you run programs or switch tabs, they load into RAM. The speed of RAM is measured in nanoseconds, and typical setups range from a few gigabytes to dozens of gigabytes. ...