PowerBook 520 (1994)
The PowerBook 520 introduced a range of new features to the PowerBook line. Among its achievements: the first laptop in the world with a built-in trackpad (marking the beginning of the end of trackballs in laptops); the first Powerbook with PC Card slots for expandability, built-in stereo speakers, and built-in Ethernet; and the first Powerbook to enter sleep mode when its lid was shut. Its relatively durable, stylish design and decent keyboard didn’t hurt either, making the PowerBook 500-series a favorite among Mac aficionados. (Photo: Apple, Inc.)
