Exoskeleton: What is it?

A powerede exoskeleton is a powered mobile machine consisting primarily of a skeleton-like framework worn by a person, and a power supply which supplies at least part of the activation-energy for limb movement.
Powered exoskeletons are designed to assist and protect the wearer. They may be designed for example to assist and protect soldiers and construction workers, or to aid the survival of people in other dangerous environments. A wide medical market exists in the future for providing mobility assistance for aged and infirm people.
Working examples have been constructed but are not currently widely deployed. Various problems remain to be solved, including suitable power-supply.

(Post gotten from wikipedia. For the rest of the article please visit this link: http://en.wikipedia.org/wiki/Powered_armor)