Pittsburgh Robot Hall of Fame has 4 more members

(Pixar)

The Robot Hall of Fame in Pittsburgh has four new members, including WALL-E, star of the 2008 animated film.

Carnegie Mellon University created the hall in 2003 to call attention to the iconic status of the machines and the university's own work advancing robotics technology. The hall of fame moved to the science center in 2009 and every year inducts new "members," which can be either real robots or characters from TV, movies or other pop culture sources.

In addition to WALL-E, three real robots were honored Tuesday.

They are iRobot's Packbot, which was used to defuse bombs and explored a nuclear power plant after the Japanese tsunami last year; Aidebaran Robotics' NAO, an educational tool; and Big Dog, a four-legged, rough-terrain robot built by Boston Dynamics.