What should users do with computers connected to a computer network?
For computers connected to a computer network, users must understand what resources each computer has.
Characteristics of computer networks
The purpose of establishing a computer network is to share resources, and the secondary purpose is to establish a communication system. Computers connected to the network are all "autonomous computers". The meaning of "autonomy" is that they can work independently without being connected to the network. They cannot each follow their own network protocols, but must follow a unified network protocol for the entire network. Computer networks are different from distributed systems. A distributed system is a unified logical whole, its internal structure is transparent to users, and the system can dynamically allocate work to each computer. A computer network is a union of "autonomous computers" distributed in different geographical locations, and work cannot be uniformly distributed by the system. Therefore, if users want to use network resources, they must know which computer the resources are on.
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