(Computer network is a product that closely integrates computer technology and communication technology. It is a necessary condition for society to step into informatization. It provides excellent conditions for large-scale information exchange and resource sharing, and has become the foundation of today's global information industry. . In recent years, computer technology and communication technology have achieved rapid development. Computer technology has penetrated into the field of communication technology, greatly improving the function of communication systems, and promoting the transformation of communication from analog to)
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