Up to the year 1976, as two engineer students together it only large computer systems, which did not work for only one person, soldered, gave the first personnel computer (PC). In the year 1976 they, for lack of interest in the industry, created the company Apple. In the years after further companies from the semiconductor industry brought own developments out. In the year 1981, when IBM presented the own personnel computer, the computer engineering got the attention, which needed it for the break-through on the market. IBM a processor of Intel and the operating system of Microsoft contained PC. Thus not only the PC, but at the same time also an industry standard was born set. In no other branch of industry the technical achievements developed so fast and at the same time the price so fast lowered.
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