The translucent handheld device on the Syfy network series 'The Expanse' may look like a cell phone but it's not. It's a hand terminal. Find out more about what the terminals are and how they work.

Shortly after the iPhone 4S went on sale this fall, its marquee feature, the Siri voice assistant, sparked a heated debate in the tech world: Was Siri a great computing interface, or was it the ...