A computer that is more intelligent than us?
Er come on, where have you been for the last 35 years or so?
In my hand I have a small piece of plastic with a tiny screen and a set of keys underneath it. On it I keyed in 360, then pressed the square root function key. Instantly it came up with 18.973665.
Have you tried to work out the square root of 360 without a calculator?
At best you may have just rounded it up to 19, and that's after several minutes of paperwork. (Actually, 19 squared = 361.)
But machines will always be machines, no matter how "intelligent" they might be, or become. A machine will never achieve the human soul. In other words, such a computer may "know" how to make decisions via a highly complicated flowchart programmed into it, but without a human soul it would be unable to feel empathy, sympathetic, happy, sad, angry, amused, laugh, cry, feel compassionate, to know right from wrong or to be a good friend, or for someone to be there if one is lonely or bereaved.
And it will function as long as there is a source of power. A short circuit and the machine would have as much animation as a trash can lid lying on the ground!