What is the main function of RAM?

The main function of RAM (Random Access Memory) is to hold data and programs currently in use by the CPU. This type of memory is considered volatile, meaning it temporarily stores information that is actively being processed or used while a machine is powered on. When you run applications or open files, they are loaded from permanent storage (like a hard drive) into RAM so that the CPU can access and manipulate them quickly, facilitating smooth operation and multitasking.

While RAM is essential for active data management, it does not provide permanent storage; that role is fulfilled by other forms of memory such as hard drives or SSDs. This differentiation is key to understanding how computers maintain data integrity and speed. Additionally, RAM does not directly facilitate input and output operations or manage system settings; these tasks are handled by other components of the computer system and related firmware.