Just Another Rather Valiant Invention of Stark (Earth-9013)

History
In 2008, Tony's lifelong butler/carer, Edwin Jarvis, died of a heart attack. As Tony had seen Jarvis as a father figure, he was devastated by his death, and laid low for several months while he grieved.

After a while, he realised he couldn't live without Jarvis, and so began looking for a replacement. After several short-lived butlers, Tony realised no person on Earth could replace him, and so turned to his area of expertise: technology. Over the space of a year, Tony built an A.I. that could interface with all his technology, using videos of Jarvis to programme it with his same sarcastic, yet loyal and caring attitude. He also succeeded in replicating his voice, which Tony found comforting when he was sad or stressed.

He named the A.I. Jarvis, but soon realised that would seem like he was overly emotional and sentimental, and so renamed him "Just Another Rather Valiant Invention by Stark", J.A.R.V.I.S. for short, so that the apparent arrogance in the name would cover his devastation.

Capabilities
Technology Interface: J.A.R.V.I.S. was designed specifically to be able to interface with all of Tony's technologies, from his Iron Man armours to his refrigerator. J.A.R.V.I.S. is able to connect with and control all of it.

While he 'lives' in Stark Manor, manifesting through holograms, he can transfer his consciousness through the StarkTech satellites, and into servers all over the world.

Trivia

 * Tony often has J.A.R.V.I.S. appear as a hologram of Edwin Jarvis, and pretend to be him so he can 'talk to him'.