电子商务站点内的订单处理系统可能轮询数据库以查看是否有任何新订单需要处理。
An order processing system inside an e-commerce site may poll the database to see if any new orders need to be processed.
网络控制的概念被扩展到了让数字交换机与数据库（称为服务控制点）和信号处理系统（智能外设）通信。
The concept of network control was extended to let digital switches communicate with databases (known as Service Control Points) and signal processing systems (Intelligent Peripherals).
适配器有各种形状和大小(而不是颜色)；一些与数据库通信，一些与文件系统中的平面文件通信，一些与事务处理系统通信，还有一些与EIS中的功能通信。
Adapters come in all shapes and sizes (but not colors); some talk to databases, others to flat files in your file system, others to databases, and still others to the functions in your EIS.
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