一个文件管理系统是提供对用户服务和文件使用方面的一组系统软件，包括文件的访问，目录维护和存取控制。

A file-management system is a set of system software that provides services to users and applications in the use of files, including file access, directory maintenance, and access control.

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一个文件管理系统是提供对用户服务和文件使用方面的一组系统软件，包括文件的访问，目录维护和存取控制。

A file-management system is a set of system software that provides services to users and applications in the use of files, including file access, directory maintenance, and access control.

youdao