A network node refers to a computer or other device that is connected to the network and has independent address and the function of sending or receiving data. Nodes can be workstations, clients, network users or personal computers, as well as servers, printers and other network-connected devices. Every workstation, server, terminal equipment and network equipment, that is, equipment with its own unique network address, is a network node.
Features:
1, the characteristics of the economic field
(1) The labor structure has undergone fundamental changes, and the number of people engaged in the information profession has an absolute advantage over other departments; In the gross output value of the national economy, the output value created by the information economy has absolute advantages compared with the output value created by other economic sectors.
(2) Less energy consumption and less pollution.
(3) Knowledge has become a huge resource for social development.
2. Social, cultural and life characteristics
(1) Computerization and automation of social life.
(2) It has a long-distance rapid communication network system with wide coverage, and can remotely access all kinds of fast and convenient data centers.
(3) The diversification and individualization of life patterns and cultural patterns have been strengthened.
(4) The time and activity space available to individuals are greatly increased.