Computers are almost everywhere in the global world today. What composes the elements of supercomputing? Which of these fundamental parts will be the key to having the fastest supercomputer? Various companies spend billions of dollars in research to find the fastest and better quality of supercomputers. Intel Corp., Hewlett-Packard Co., Dell Computer Corp. and others want to produce the greatest supercomputer. The United States wants to spend more time developing a faster and better supercomputer. Currently, some believe that Japan has the fastest supercomputer. This essay will discuss various supercomputers, their architectures with the pros and cons of each and what each of these computers are designed to do.