The term 'COMPUTER NETWORKING GIANT' is referring to the company Cisco, which is a five-letter word. Cisco is a multinational technology conglomerate that specializes in the manufacturing and selling of networking hardware, telecommunications equipment, and other high-technology services and products. It is one of the largest networking companies in the world and is considered a leader in the field of computer networking. Cisco has been a major player in the industry since its founding in 1984 and continues to be a major innovator in the field.