when multiple clients have the same printer configured, they generally do so through a service called a spooler.

portal, as the next-generation desktop, is web-based system, provides single access to end application and all kinds of resources from heterogeneous sources, and it commonly provides personalization, single sign-on, and application aggregation.

门户，即Portal，作为下一代桌面，是一个基于Web的系统，它提供了统一的访问入口来访问企业后台应用程序及各种异构资源，为企业提供个性化、单点登录及应用集成功能。

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winsock-based program of monitoring e-mail backstage

基于WinSock的电子邮件后台监听程序设计

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windows services are background applications that perform tasks or provide services to other programs.

windows服务是执行任务或为其他程序提供服务的后台应用程序。

provided by jukuu

meanwhile c# is finally getting a background compiler.

同时C最终获得了一个后台编译程序，而非VB那样的完全的编译器。

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experiments show that the indexing mechanism can efficiently achieve massive data queries. ( 4) combining with the above research, we design and implement large data storage and analysis platform, including cloud platform, the background program and the foreground display system program.

实验表明该索引机制可以高效地实现海量数据的查询。（4）结合上述的研究内容，本文设计实现了大数据存储及分析平台，包括云平台、后台程序和前台展示系统。

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using the trigger the application system can perform a complex rule check and using the stored-procedure the design of the application system can be divided into two sections-the foreground program and the background one. that can reduce the complexity of the system design.

使用触发器可以完成复杂的规则检查，使用存储过程可以将前台程序的设计和后台程序的设计分开，减少系统设计的复杂性。

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among them, the computer for operation simulation training system uses double screen structure. it truly and lively realizes the operation simulation by the orderly combination of front-stage multi-media interface and backstage programs.

其中，运行操作仿真培训系统的计算机采用双屏结构，通过前台多媒体界面与后台程序的有序结合，真实、生动地实现了运行操作仿真培训。

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during the background program, some data processing functions are studied, such as decode, mistake diagnosing, cutter compensation, speed control, lcd display, and so on.

在后台程序中，研究了数控加工程序的译码处理、错误诊断、刀具补偿、速度控制和液晶显示等处理功能。

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we can draw electrical components of the distribution network and fill the components data easily. background programs analyze topology automatically and constitute node admittance matrix, node impedance matrix.

它使用图形元件直接绘成系统接线图，在屏幕上输入元件参数，后台程序自动进行网络拓扑分析，然后基于稀疏技术，利用支路扫描法形成节点导纳阵，连续回代法形成节点阻抗阵。

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in addition, a daemon server using multi-threaded architecture has been designed and implemented, which provides remote status monitoring and supports remote control of the platform.

另外，论文还实现了一个具有网络服务器功能的多线程后台程序，可支持远程状态监控和远程控制。

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with the help of the proxy program designed in this paper, the communication between the gui program and the background program is realized.

利用本文设计的中介程序实现后处理前台界面和后台程序之间的通信。

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if the priority is above a configured threshold, the daemon can take one of several actions.

如果优先级高于配置的阈值，那么改后台程序会采取若干种操作之一。

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this daemon queries the kernel for the lowest-priority thread run over a specified interval.

这个后台程序将在内核中查询指定间隔内运行的优先级最低的线程。

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finally, the article shows the system interface, and tests the finished system.

最后，设计系统界面，实现后台程序，并对完成的软件程序的测试做出详细阐述。

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it introduces background program's implementation chiefly.

重点介绍了后台程序实现部分。

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design the whole interface and make the background process;

界面整体设计及后台程序定制；

provided by jukuu

the ntpd daemon runs in the background and can be configured both to supply time synchronization information and automatically update the time of the local machine according to a server.

ntpd后台程序在后台执行，可以配置为提供时间同步信息和根据服务器自动更新本地计算机的时间。

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this feature is implemented as a daemon ( shdaemon) that runs at the highest process priority.

该特性被实现为一个后台程序（shdaemon），它按照最高优先级运行。

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once you have downloaded and compiled, or separately installed the package, the key component is the ntpd daemon.

下载并编译或独立安装了相应程序包后，就可以得到关键组件ntpd后台程序。

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on the basis of combining the features of spread protocol, this paper presents the architecture of a new scalable secure group communication system, and expatiates the establishment and working principles of the two-level security mechanisms ( client to daemon and daemon to daemon).

在结合了spread协议特点的基础上，提出了一个新的可扩展安全群组通信系统的架构，阐述了该结构下两层安全机制（客户端与后台程序以及后台程序之间）的建立与工作原理。

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