|a. a sequence of operations performed on data, esp by a computer, in order to extract information, reorder files, etc|
|b. (as modifier): a data-processing centre|
|an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle.|
|a screen or mat covered with a dark material for shielding a camera lens from excess light or glare.|
Either the preparation of data for processing by a computer, or the storage and processing of raw data by the computer itself.