MMC stands for MultiMediaCard, a type of memory card used for storing data in various electronic devices. It was introduced in 1997 and is designed to be compact and lightweight, making it suitable for portable devices like cameras, smartphones, and tablets. The MMC format has evolved over the years, leading to different versions that offer increased storage capacity and faster data transfer rates. While it has been largely replaced by other formats like SD cards, MMC is still used in some applications due to its simplicity and compatibility with older devices.