Cray XMP Range
The Cray XMP was the next generation and direct successor of the Cray-1. The Cray-XMP series of computers were manufactured from 1983 till 1988. The XMP was the first computer to provide multiple vector processors, executing simultaneously on shared memory. The computers were compatible with the Cray-1 range, and so customers could migrate their workloads to the Cray-XMP quickly and easily. Like the Cray-1, the computers were reliable and provided excellent performance. The Cray XMP solidified the reputation of Cray Research as a manufacturer of high performance and high quality products.
The XMP can be distinguished from the Cray-1 by its smoother appearance and, lack of fins on top. Internally the XMP had the option of 2 or 4 cpus and extra IOS and SSD cabinets.