array processor vector processor <processor> (Or "vector processor") A {computer}, or extension to its {arithmetic unit}, that is capable of performing simultaneous computations on elements of an {array} or table of data in some number of dimensions. The {IBM AltiVec} (the "Velocity Engine" used in the {Apple G4} computers) is a vector processor. Common uses for array processors include analysis of fluid dynamics and rotation of {3d} objects, as well as data retrieval, in which elements of a {database} are scanned simultaneously. Array processors are very rare now (1998). Array presentation (http://cs.njit.edu/leon/105/c5/index.htm). (2003-09-11)