Personal Computer is the name of a computer that, in contrast to supercomputers or data centers, is very general in order to handle all sorts of tasks. At the beginning of the computer era one thought that the computing power would be available like as the power which comes from the socket. Over time, however, the idea has changed since in the 1970s, the IBM PC was available. The computer became more and more affordable and soon everyone could surely afford one. So he became the personal calculator.