三家数据库与CNPAC网的使用和分析

APPLICATION AND ANALYSIS OF DATABASES IN THREE UNITS WITH CNPAC NETWORK

本文通过利用分组交换网（简称分组网）进行“三家联网”数据库的联机情报检索试验，对分组网和电话网的性能及费用做了较详细的介绍，得出了分组网在通信质量上和通信费用上都优于电话网的结论，并对“三家联网”数据库进行了用户评价。

The paper explains in detail the quality and cost of the Packet Switched Public Data Network (PSPDN) by on line searching of the databases in the network of three information units in Beijing and a conclusion is thus drawn by the authors that PSPDN is superior to the telephone network in both communication quality and communication cost. The paper also give some comments on the databases in the networking of the above three units from the view of the user.