 The terms are generally used only to refer to multi-core microprocessors that are manufactured on the "same" integrated circuit die; separate microprocessor dies in the same package are generally referred to by another name, such as "multi-chip module".This article uses the terms "multi-core" and "dual-core" for CPUs manufactured on the "same" integrated circuit, unless otherwise noted.In contrast to multi-core systems, the term "multi-CPU" refers to multiple physically separate processing-units (which often contain special circuitry to facilitate communication between each other).