"A...I...What does the A stand for?"
-"Artificial."
"...what does the I..."
-"Intellegence."
"Ooooohhh!!!What was the A again?"
-"Let's move on."
***
"A...I..."
-"Shut up Caboose."
The short for Artificial Intelligence, whereby computers "learn" from performing tasks and their results being classed as "good" or "bad", causing the computer or program to strive for "good" results more often.
Often improperly thought or used to mean that a computer or program has become sentient and able to think and act on its own.