The Japanese yen is the official currency of Japan and is the third most traded currency in the world, after the US dollar and the euro.
The robotic pet, such as Sony's Aibo, has become a popular form of entertainment and companionship for people who cannot keep real pets.
The digital camera, co-invented by Fujifilm and Olympus in the 1980s, has made photography more accessible and convenient for the average person.
