The histories of the developments, success, and groundings of IT companies could fill books of several hundred pages. This book here concentrates on the relatively short, but exotic life cycle of the Control Data Corporation. For a long time, this in Minneapolis, Minnesota founded and later became a worldwide leader, was only known to specialists. For normal people, their computers were just one of those IBM machines. CDC and IBM were bitter enemies. IBM survived. In this essay entitled CDC are historical proven, and also not so proven rumors intermixed with humorous human anecdotes which always are related to CDC. It tries to explain to the non-computer freaks the hectic time that led to the completely IT-oriented world in there we live today.