X11为窗口管理、事件处理、同步和客户机间通信提供强大的功能—并且大多数开发人员已经熟悉了它的API。
X11 offers powerful facilities for window management, event handling, synchronization, and inter-client communication — and most developers are already familiar with its APIs.
为了让您了解此功能，让我们假定公司为其客户提供三个应用程序：股票交易、账户管理和金融建议。
To give you an idea of this capability, let's assume that a company has three applications for its customers: stock trading, account management, and financial advice.
可管理性功能确定一个“契约”，可管理资源将该契约声明为可提供给客户端。
Manageability capabilities identify a "contract" that a manageable resource asserts it can offer to clients.
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