The document discusses definitions of the term "hacker" from the New Hacker's Dictionary and Eric S. Raymond. It provides 7 definitions that generally refer to someone who enjoys exploring technological systems and programming, with the goal of learning how they work and stretching their capabilities. The document also includes several case studies on applications of wearable technology, including a smartwatch running a rooted version of Android, and how Android and Linux power many modern devices and systems. It concludes with several images and references relating to emerging areas of wearable and assistive technologies.