A memory card
is a small, flat, electronic device that fits inside a digital camera and is used to store data about digital images. Several different types of memory cards exist, and digital cameras can only use a specific type or types. Each type is a different size, and most memory cards are not interchangeable.
Most memory cards range in size from a quarter to a half-dollar to a stick of gum, although the exact size and shape of each memory card depends on the type. Memory cards use flash memory technology to store data, and they have no moving parts.
The different types of memory cards are listed under the "Types of Memory Cards" links below.
Also Known As: flash memory