XD

From Freepedia

• xD-Picture Card is a format of flash memory data storage device developed by Olympus and Fuji and used mainly in their digital camera products.

• XD is an emoticon used on the internet to express extreme happiness and/or laughter.

• Springfield Armory XD is also a line of semi-automatic pistols manufactured by Springfield Armory.

• Pokémon XD: Gale of Darkness is the name of a Pokémon video game developed for the Nintendo GameCube.

• XD_bit is a security-related computer technology for Intel processors which does not permit the execution of so-marked sections of memory in order to avoid the execution of possibly malicious instructions contained in data sections of program memory.