What is RAM used for in a computer?

RAM, or Random Access Memory, is a type of volatile memory used in computers to store data that is actively being used or processed by the CPU. When you run programs or perform tasks on your computer, they are loaded from the hard drive into RAM to allow for quick access and manipulation. This speed is crucial because accessing data in RAM is significantly faster than accessing data stored on traditional storage devices like hard drives or solid-state drives.

When a program is executed, it needs to access and manipulate data frequently. Having this data in RAM enables the CPU to retrieve it quickly, which results in smoother performance and faster processing times. Once the power is turned off, the data stored in RAM is lost, which is why it is different from permanent storage, such as a hard disk or SSD where files, including the operating system, are stored long-term.

Understanding the role of RAM helps clarify why it is essential for the operation of a computer, particularly in managing active tasks and applications efficiently.