"The SAGE network of computers connected by a "Digital Rada…
"The SAGE network of computers connected by a "Digital Radar Relay"[60] (SAGE data system)[61] used AT&T voice lines, microwave towers, switching centers"
"The SAGE network of computers connected by a "Digital Radar Relay"[60] (SAGE data system)[61] used AT&T voice lines, microwave towers, switching centers"