Understanding Random Access Memory: A Complete Guide RAM, also known as random access memory, is an essential part of every computer system. Your device can store and retrieve data rapidly while executing tasks ludo bet apkthanks to its short-term memory. RAM is volatile memory, as opposed to long-term storage options like hard drives or solid-state drives, which keep data even when the computer is turned off. In other words, when the power is switched off, all stored data is lost. RAM's main purpose is to give the CPU quick access to data that is being used or processed, which greatly improves the system's overall speed and efficiency.