IBM is known for producing largest and fastest supercomputers in the world. The Blue Gene machine is expected to operate at a speed of 20 petaflops. IBM's new computer that will be soon released is “Sequola”. It will run 10 times faster than the present best supercomputers. It can perform mathematical operations at a speed of quadrillion operations per second. The Blue Gene gave a new design to computer industry because its manufacture process was different from others. These supercomputers give advantage of low power consumptions and high performance. Hence they are much useful to negotiate energy crisis.