root directory - meaning and definition. What is root directory
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Online Dictionary

What (who) is root directory - definition

FIRST OR TOP-MOST DIRECTORY IN A HIERARCHY
Root Directory; Miniroot; Root file system; Root level; Htdocs; Root filesystem; Root folder; Super-root (computing); Super root (computing); Super root (Unix); Super-root (Unix); Superroot (computing); Superroot (Unix)
  • View of the root directory in the [[OpenIndiana]] operating system

root directory         
<file system> The topmost node of a {hierarchical file system}. (1996-11-21)
Root directory         
In a computer file system, and primarily used in the Unix and Unix-like operating systems, the root directory is the first or top-most directory in a hierarchy. It can be likened to the trunk of a tree, as the starting point where all branches originate from.
directory enquiries         
PHONE SERVICE
Directory enquiries; Directory Assistance; 555-1212; Directory inquiries; ODSI; 5551212; Phone directory assistance; 118 500; 118 888; 118 800; 118800; Directory Enquiries; Directory Inquiries
Directory enquiries is a service which you can telephone to find out someone's telephone number. (BRIT; in AM, use information
, directory assistance
)
He dialled directory enquiries.
N-UNCOUNT

Wikipedia

Root directory

In a computer file system, and primarily used in the Unix and Unix-like operating systems, the root directory is the first or top-most directory in a hierarchy. It can be likened to the trunk of a tree, as the starting point where all branches originate from. The root file system is the file system contained on the same disk partition on which the root directory is located; it is the filesystem on top of which all other file systems are mounted as the system boots up.