This book explains the hardware implementation of computational holography and hardware acceleration techniques, along with a number ofconcrete example source codes that enable fast computation. Computational holography includes computer-based holographictechnologies such as computer-generated hologram and digital holography, for which acceleration of wave-optics computation is highly desirable.This book describes hardware implementations on CPUs (Central Processing Units), GPUs (Graphics Processing Units) and FPGAs (Field ProgrammableGate Arrays).