RU2

Built by a Star Trek engineer
and named as model of the year,
I'm activated by a silicon chip
to perform all duties without glitch or blip.
I can bring a spaceship in to land
or change a baby with a metal hand.
The computer database in my brain
answers queries without stress or strain.
I am fully programmed to obey
and work a 24-hour day.
I only speak when I'm spoken to.
I am a robot. RU2?