The system Administrator is one or more people who can access the portal application at the operatingsystem (OS) level.
系统管理员是一个或多个员工，他们可以访问操作系统(OS)级别的门户应用程序。
2
The idea of security starts with our own local operatingsystem (OS) environment.
安全理念起源于我们自己的本地操作系统(OS)环境。
3
For example, some software providers may choose a self-managed heap space, while others rely on the underlying operatingsystem (OS) for such functionality.