A humanoid automaton is a machine which does a job in a way similar to a person.
An automaton is a self-operating machine. This term has been used in the past to describe simple automata, such as the moving characters in elaborate clocks.
History
Doctor Andrea Moreau drafted the initial designs for an artificial human in the early 1800s in her quest for immortality.
The country of Golah has had simple humanoid automatons called "golems" for many years, but the nation's isolationism prevented this technology from spreading to the rest of the world.
There have been many non-humanoid, toy automata that perform small tasks, but they were only for the amusement of the wealthy.
Beginning with the invention of Buford Automaton's A.D.D. Engine, engineers world over have begun creating humanoid, or generally-person-shaped, automatons with limited, programmable intelligence.
Utility
Engineers design humanoid automata to replace workers in mundane or dangerous tasks.