You won't believe these tech inventions are 20 years old


Portable music players

The iPod might be the most iconic portable music player, but it wasn't the first to make a splash. That distinction goes to the Diamond Rio PMP300, the first commercially successful digital audio player. It debuted in 1998, three years before the iPod and iTunes hit the market, and its sales and trailblazing in legally protecting a new product paved the way for the digital music revolution.