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Computers are found in practically every household today. Everywhere you look, people have access to a Personal Computer, someway or another. As computers get more advanced, the demand for a better computer gets greater. Personal Computer (PC), machine capable of repetitively and quickly performing calculations and instructions. Designed to be used by a single person, a PC is smaller, less expensive, and easier to use than other classes of computers, such as supercomputers, mainframe computers, …

…powerful mainframes, called supercomputers, perform highly complex and time consuming computations and are used heavily in both pure and applied research by scientists, large businesses, and the military. In conclusion, mainframe computers are really expensive and space consuming.2 If you want a computer just for regular everyday functions, it is recommended that you buy a PC. If you have a business and the available resources, then a mainframe might be the right choice for you.