The 100 series Shinkansen high-speed train operated between 1984 and 2012 on the Tokaido Shinkansen and Sanyo Shinkansen high-speed lines. Though introduced after the 200 series trains, they are named 100 series because at the time of production, Shinkansen types running east of Tokyo were given even numbers and those west of Tokyo odd numbers, therefore they were given the next odd number in line after 0, 100. The last remaining 100 series trainsets were withdrawn from service following the last runs in 2012.
The 100 series differs from the earlier 0 series in that the nose profile is more pointed. A not so visible difference was that not all cars were powered; the driving cars on each end and the two bilevel center cars were unpowered though some later production sets had powered driving cars and four unpowered bilevel cars in the middle. The bilevel trailer cars contained a combination of restaurant cars, and first class compartments, or open-plan first class seating and first class compartments, or open-plan first class seating and refreshment cars.