事实是，基础设施软件产品（如J2EE应用服务器）尚未达到多用户操作系统的成熟水平。
The reality is that infrastructure software products, such as J2EE application servers, have not yet reached the maturity level of multi-user operating systems.
UNIX一直都是可靠、安全的多用户操作系统，这使它持续在企业Web和应用程序托管领域占支配地位。
The bottom line is that UNIX was and is a reliable, secure, multi-user operating system that continues to dominate the enterprise Web - and application-hosting landscape.
移动操作系统对许多用户的选择有着最直接的影响，但是安卓有着非常明显的不可忽视的问题。
The mobile operating system is an outstanding choice for many consumers, but there are glaring problems with Android that are simply impossible to ignore.
两个操作系统都允许将用户分组管理以简化访问控制，以避免为众多用户分别设置权限。
Both systems allow collecting users into groups so that access control can be done more easily without having to touch many users for each change.
大多数电脑出售时便预先安装了微软操作系统，此举引起许多用户的不满。
Most computers are sold with the Microsoft operating system pre-installed. That annoys many users.
Android操作系统是一个多用户的Linux系统，每个应用都是一个不同的用户。
The Android operating system is a multi-user Linux system in which each application is a different user.
学生也将接触到一些多用户的操作系统程序，例如unix或LINUX。
Students are also expected to do some system programming on multi-user operating systems such as UNIX or LINUX.
在实践中，很多用户使用的操作系统仍然是WINDOWS系列，而如何与UNIX系统互联和资源共享是个难题。
In practice, the operating system that many consumer use is still WINDOWS serial, but how to use the UNIX system connect with each other and how to share resource is a problem.
多用户：允许两个或更多的用户同时运行程序，某些操作系统甚至允许几百或几千个用户同时使用。
Multi-User: Allows two or more users to run programs at the same time. Some operating systems permit hundreds or even thousands of concurrent users.
QNX是实时、多任务、多用户、可嵌入的操作系统。
The operating system of QNX is the real-time, muti-task, muti-user embedding system .
QNX是实时、多任务、多用户、可嵌入的操作系统。
The operating system of QNX is the real-time, muti-task, muti-user embedding system .
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