Fingerprint scanners are an essential feature in the smartphone market. Here's how they work and what you need to know about them.

What once cost hundreds of thousands of dollars and required hours of manpower, the Artec Eva 3D scanner has made the task a simple, affordable procedure.

If you've used an Android phone recently, you've probably come across the in-screen fingerprint scanner. But how does it work? This, friends, is how.