Looking back at the 20th century, it’s clear that even the biggest and baddest gadget sensations will one day fall victim to technological evolution.

As each year brings thinner, shinier toys, it’s easy to forget that not too long ago typewriters were the professional alternative to freehand, Walkman ruled the portable-music market and extra-long phone cords would let you speak to friends while standing 10 feet away from the wall-mounted base.

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