Random access memory, or RAM, is memory storage on a computer that holds data while the computer is running so that it can be accessed quickly by the processor. RAM holds the operating system, application programs and data that is currently being used.
RAM data is much faster to read than data stored on the hard disk. RAM is stored in microchips and contains much less data than the hard disk. RAM can never run out of memory, but the processor must overwrite old data if the RAM is filled, which results in slower computer function. Any file stored in RAM can be accessed directly if the user knows the row and column where the data is stored.