The supercomputer is a computer with a high level of performance that is used to solve the most complex problems. The start of supercomputer development goes back to the 1960s, when it is introduced in the application processing of various data by Seymour Cray, who later founded the company Cray Research, which will become one of the most important manufacturers of supercomputers. Among the significant problems with supercomputers can be noted it is his cooling, but there are various ways how to solve the problem of cooling supercomputers. Most supercomputers use UNIX or LINUX operating systems. Supercomputers are applied in many branches of science, as well as in defense and in the business sector. The fastest supercomputer today is Sunway TaihuLight, and behind him is Tianhe-2, both supercomputers are from China, which is the last few years overtook the USA in the development of supercomputers.