PDA

A personal digital assitant (PDA) is a pocket sized computer used for everyday tasks such as calendar, [address book]?, [todo list]? applications.

Important PDAs in history have been:

Apple Newton, [Compaq iPAQ]?, [Palm Pilot]?, [Rocket eBook]?

See also personal area networks, ebook?s, and telephones.

"PDA" is also an acronym for [public display of affection]?--an area of study within social psychology.