Wearable keyboards

The Apple Watch and Google Glass are some of the most widely known wearable devices, but the ways users can interact with these "smart" gadgets are limited. For instance, it would be pretty difficult to type a message out on the face of a watch. And forget even trying with a pair of smart glasses. But now, researchers have developed wearable keyboards made of electronics knitted together like fabric that could lead to a new kind of human-machine interface.
Right now, the key way that people interact with computers is by using the keyboard, researchers say. However, creating wearable keyboards for wearable electronics is a challenging task — such keyboards have to be large to fit enough keys to be useful, and must be flexible and stretchable to follow the movements of the human body.