应用软件，客户定制软件，软件，电子数据处理和数据服务设备。
Software for application packages, software to customer specification, software houses, Electronic da...
顾客需要为自己购买的第一台设备签一个为期两年的数据服务合同并支付199.99美元。
Users will need to sign up for a two-year service contract with a data plan and pay $199.99 for the first device.
数据库服务器作为专用数据存储和管理设备对上层系统提供数据服务，从而为上层对系统分析管理提供数据依据。
Database server, as the specific data storage and management device, provides the upper system with data service and serves as the data reference source for the upper's analysis and management.
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