I. ˈ ̷ ̷ˌ ̷ ̷ noun
Etymology: clip (II) + board
: a small portable rectangle of wood or other stiff backing material to one end of which is attached a spring clip for holding sheets of paper or a writing tablet securely
II. noun
: a section of computer memory that temporarily stores data (as text or a graphics image) especially to facilitate the movement or duplication of the data