This Computer architecture is the conceptual design and fundamental operational structure of a computer system. It's a blueprint and functional description of requirements and design implementations for the various parts of a computer, focusing largely on the way by which the central processing unit (CPU) performs internally and accesses addresses in memory. In this paper, we present an overview of parallel computer architectures and discuss the use of fiber optics for clustered or coupled processors.
Presently, a number of computer systems take advantage of commercially available fiber optic technology to interconnect multiple processors, thereby achieving improved performance or reliability for a lower cost than if a single large processor had been used. Optical fiber is also used to distribute the elements of a parallel architecture over large distances; these can range from tens of meters to alleviate packaging problems to tens of kilometers for disaster recovery applications.