L'arrivée au CERN du nouveau superordinateur Cray X-MP/48

The Cray X-M17/ 4S arrived at CERN on January 27th and was handed over for software installation on February 16th. Instead of installing COS, an older but well established operating system, it was decided at CERN to install the new UNICOS system from Cray Research that was based on AT&T UNIX System V with extensions for batch, online tape and cartridge drives, and other features necessary to use and operate a super-computer.