Final answer:
The true/false statement that the majority of internet communications subscribe to the client/server model is true. The commercial internet was established following advancements in the 1980s that led to a standardized Internet protocol system.
Step-by-step explanation:
The majority of internet communications adhere to the client/server model, where a server provides resources and services to client computers. This statement is true. Models like peer-to-peer (P2P) exist but are less prevalent. Advancements in networking technology in the 1980s facilitated the development of the standardized Internet protocol system, which allowed for the emergence of the commercial internet as we know it today. The Internet has undergone significant evolution since its military and academic beginnings in the 1960s and 1970s, with the World Wide Web being developed towards the end of the 1980s. The transition from government use to public accessibility represents a pivotal change in computer networking history.