Question

what is the advantages for single-level directory ??

Answer 1

A directory system can be classified in to single level and hierarchical directory system:

Single level directory system: In this type of directory system, there is a root directory which has all files. It has a simple architecture and there are no sub directories. Advantage of single level directory system is that it is easy to find a file in the directory. This type of directory system is used in cameras and phones.