Button function returning user operating system and browser version?

按钮功能返回用户操作系统和浏览器版本吗？

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MS-DOS is a single-tasking, single-user operating system with a command-line interface.

MS-DOS是带有命令行界面的单任务处理、单用户操作系统。

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Students are also expected to do some system programming on multi-user operating systems such as UNIX or LINUX.

学生也将接触到一些多用户的操作系统程序，例如unix或LINUX。

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The NOR type needs to be ultrafast because it is directly connected to the central processing unit of a computer and stores its basic input-output system (the operating system used by the microchip that lies beneath user-interface operating systems, such as Windows).

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But the future is about user access to content and experiences across devices that may have unique formats, operating systems, user interfaces.

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"Any voting system is dependent on its user following the proper operating procedures and, in this case, Horry County election officials missed a step, " he says.

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