Call it the era of the extroverted computer.
In the old days of personal computing, expansion meant using vacancies inside a computer chassis where you could plug in graphics cards and hard drives. But now, because of Apple's fondness for Intel's high-speed Thunderbolt data port, expansion means hooking up devices outside the chassis.
Connecting external devices has long been just about the only way to bring new hardware to laptops. But at its WWDC 2013 show on Monday, Apple showed that the sealed-box philosophy of the laptop is coming even to Apple's highest-end, most expandable machine, the … Read more