www.ucolick.org/~de/deimos/glossary.html
定义五；
A software mechanism that defines the way that files are named, stored, organized, and accessed on logical volumes of partitioned memory.
文件系统是基于被划分的存储设备上的逻辑上单位上的一种定义文件的命名、存储、组织及取出的方法；
www.evestigations.com/html/glossary.html
定义六；
In computing, a file system is a method for storing and organizing computer files and the data they contain to make it easy to find and access them. File systems may use a storage device such as a hard disk or CD-ROM and involve maintaining the physical location of the files, or they may be virtual and exist only as an access method for virtual data or for data over a network (e.g. NFS).
在计算机业，一个文件系统是有组织存储文件或数据的方法，目的是易于查询和存取。文件系统是基于一个存储设备，比如硬盘或光盘，并且包含文件文件物理位置的维护；也可以说文件系统也是虚拟数据或网络数据存储的方法，比如NFS；
en.wikipedia.org/wiki/Filesystem
