These historic photos, however, are a nostalgic reminder of how quickly future tech becomes obsolete--if not retro. Even the so-called booth babes have evolved (and yet also stayed the same, thanks in part to the return of 1980s fashions.)
IFA-Berlin dates back to 1926, originally organized as a radio exposition and then becoming a tool of the extreme right during World War II.
But this retrospective begins in the 1970s, when the show returned to Berlin and became an international affair, rather than a strictly German one. That was also around the time color TVs started to become more prevalent.
Here's a photo welcoming attendees to IFA-Berlin in 1973. Note the show logo (left), which is still used today.