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1. The history of the development of computer networks.
The birth of the first generation of computers in 1946 was an important milestone in human history. In the era of mechanization and electrification, people replaced part of their physical labor with machines, and the birth of computers made it possible for people to partially replace people's mental work.
In the 80s of the 20th century, the emergence of microcomputers changed the centralized management and operation mode of the host model, and put powerful computing and processing power into the hands of individuals, which laid the foundation for the use of computers and the popularization of computers in all walks of life.
The third stage is networking. Since 1969, the Defense Advanced Research Projects Agency (DARPA) of the U.S. Department of Defense established the world's first packet-switched network (Arparnet), the predecessor of the Internet, especially after the 90s, with the rapid development of computer communication technology and the maturity of network technology, the computing machine network has been applied to all walks of life and entered our lives.
2. What is network technology?
The common definition of a network is: a computer network is a network that connects multiple computer systems with different geographical locations and independent functions through communication equipment and lines, and realizes the sharing of network resources by well-functioning network software.
Network function: resource sharing, common resources available for sharing include: program sharing; data sharing; processor sharing; Peripherals are shared. There are two main forms of data communication provided by the network: non-real-time communication and real-time communication.
Tutorial Takashi Mori.
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PC computer technology, the most practical computer technology network. Free rough boy for computer technology, common skills, office software tutorials, design Yuchun tutorials, web page production, wallpapers, software and other services.
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Training objectives: to cultivate knowledge and skills in computer control systems, to be able to use single-chip microcomputers to design computer control systems, and to engage in the hardware and software development and debugging of intelligent advertising products and their technical services.
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Very well understood. The former is mainly used for computers.
The latter is the network.
A very simple example:
A computer can't get online:
Hypothesis 1: The network card is broken and the computer is poisoned.
The solution to such a problem is computer repair.
Assumption 2: The route is overloaded and the switch is misconfigured.
It's a problem with the network.
The most fundamental difference is:
The former is the maintenance of hardware or software on a separate PC or server.
The latter is to build various networks (including company local network, city network, intel network, or mobile phone network, radio network, television network, etc.) and carry out the necessary maintenance of these networks.
There is no hardware technology or software technology, and it can be said that both include hardware technology and software technology.
Network technology is better, if you want to learn well, it is more difficult to learn network technology, and now the most profitable thing in computers do you know what it is, network security. Don't think that making software makes money, if you choose network technology, you must learn C language well in college, data structure and network knowledge.
I've been doing the Internet for 6 or 7 years.
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