This refers to the mind's ability to simultaneously process information on separate conscious and unconscious tracks.
Dual Processing Capabilities cheat sheet for homework
This is the ability of the brain to do many things (such as walking and talking) at once.
This is focusing on a particular object for a period of time while ignoring irrelevant information that is also occurring.
Unconscious encoding of incidental information such as space, time, and frequency, and well-learned information such as word meanings.