Question

How many supercomputers are there in the world? Which are their uses?
Please put bibliography if you use any site

Answer 1

they r used for weather forecastin

Answer 2

this are the top 500, they have a good archive, so u can get an idea how many they are:

http://www.top500.org

Answer 3

Asia has come out swinging at the top of June 2011’s Top500 list, which rates the world’s fastest computers based on the LINPACK benchmark. Leading the list is the K Computer, which achieved 8.2 quadrillion floating-point operations per second (petaflops) to give Japan its first appearance in the much coveted number-one position since November 2004. It knocks China’s Tianhe-1A, at 2.6 petaflops, to second place. The U.S.’s Jaguar (1.75 petaflops) was pushed from second to third place. (Source: Communications of the ACM, Copyright 2011)

Answer 4

Supercomputers have many uses. Some are used for weather, others to render animated movies. Still other do simulations on wind tunnels and other high computation algorithms.