1 2 3 1 _ _ _ 2 _ _ _ 3 _ _ _ ACROSS 1) (computer science) the part of a computer (a microprocessor chip) that does most of the data processing 2) a mixture of gases (especially oxygen) required for breathing; the stuff that the wind consists of 3) a writing implement with a point from which ink flows DOWN 1) a tight-fitting headdress 2) dish baked in pastry-lined pan often with a pastry top 3) a large vase that usually has a pedestal or feet ** Scroll down for solution. ** Are you sure you want to peek? cpu air pen