Secure digital memory
From The Glossary of Digital Photography
Also known as an SD memory card. A popular flash-memory card used to store images in digital cameras and other digital devices, such as PDAs and hand-held computers.

ONLINE GLOSSARY OF DIGITAL PHOTOGRAPY
Also known as an SD memory card. A popular flash-memory card used to store images in digital cameras and other digital devices, such as PDAs and hand-held computers.