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On this site you get an overview about circuits since the 60th. By reference to the exhibits you experience which step were necessary to develop our today's circuit technologies. You get information about circuit boards from IBM, e.g. some origin from IBM System/360. On pictures you will see the tremendous differences in size to modern technologies. It is recommend to have a look on logic circuits before you will start the tour. However, you have to decide if you chose expert or normal mode.
