That is difficult to define as computer historians still debate the first supercomputer! The first supercomputer was one of the following four machines, depending on whose history you read:
After this it was a competition mostly between CDC and Cray (who had designed the 6600 for CDC originally), with various experimental designs (e.g. ILLIAC IV, Connection Machine) for several years.
The most powerful (thus fastest) super-computer in the world is in Japan. Its name is the "Computer K." While the most powerful super-computer in the US is the Jaguar Super-Computer and is located in California.
k Supercomputer
jorma bill processor
PARAM PADMA is the name of the first super computer.
Micro computer. Main-frame computer. Super computer.
super computer
The computer you are referring to is "Lisa". It was technically Apples third computer.
Saga-220
Watson
A supercomputer refers to a computer that has a contemporary processing capacity. Some of the names of the super computers include: Stampede, Vulcan, Pangea, Jarvice, and Hopper.
Jaguar - The World's Fastest Computer - AMD
That changes almost daily, see the TOP500 list.