Hint 1: I am associated with the idea of memory being divided into three main components.
Hint 2: My creator's name starts with the letter 'A'.
Hint 3: One of my components is responsible for holding information for a limited period of time.
Hint 4: Another one of my components is where information is actively attended to.
Hint 5: My most famous model was proposed in 1968.
Who Am I?