Transparent+Verses+Opaque+Technologies

**Transparent technologies** - well fitted to and integrated with our own lives, biological capacities, and projects as to become almost invisible in use - conscious agent literally sees through tool and directly confronts real problem at hand - examples include pen and paper, sports equipment, musical instruments - may require training and practice 

- keeps tripping user up, requires skills capacities that do not come naturally to biological organism - remains focus of attention even during routine problem-solving activity - highly visible in use - distinguish sharply and continuously between user and tool
 * Opaque technologies**