File Managers In Operating Systems Essay

1995 words - 8 pages

The operating system (OS) is a collection of software to control the computer tasks and manage proper utilization of the hardware resources. The basic operating systems are the Linux, UNIX, Mac and Microsoft Windows. There are several and diverse components of an operating system that include but not limited to the file management, security, memory and process management. The following paragraphs present the comparison of basic operating systems with respect to the above given features (Solomon, Russinovich & Polze, 2006).
The file management system refers to the organization, management and manipulation of computer data in documents and files that is provided by the file manager through a graphical user interface. The computer documents and files can be created, edited, viewed and deleted from the computer memory as well as the files can be arranged in computer directories. The process of file management differs with respect to the operating system as presented in the following paragraphs.
There are several file managers used by Microsoft Windows only that include but not limited to the Altap Salamander, FAR Manager, File Manager, Windows Explorer etc. The files are placed in the folders and the index contains the file information known as File Allocation Table (FAT). One of the latest file management systems of the Windows is the New Technology File System (NTFS). The NTFS store owner name, it provides POSIX file permissions, creation timestamps, last access timestamp, and last content modification timestamp.
The Mac operating system uses the file managers that include: the Disk Order, Finder, Path Finder, and Xfile. The Disk order file manager provides the graphical user interface and shows the files as list view and twin panel view only. The Finder and Path Finder file managers show the icon, list view, panel view, column view and thumbnails of the files stored in the Macintosh operating system.
The Linux and UNIX use the file manager include: the emelFM2, ROX-Filer, Krusader, and the Gentoo file manager. In the Linux and UNIX, there is a root directory (/), directories and sub-directories and the files can be presented as “/usr/local/filename.txt”. The directory structure and contents of the directory are defined by the File-system Hierarchy System (FHS) in the Linux and UNIX operating systems.
The memory management is one of the core components of an operating system which manages the memory hierarchy of Random Access Memory (RAM), and hard disks. The important tasks of the operating systems in managing the memory include: the allocation and de-allocation of memory to the processes, the utilization of the hard disk for implementation of the Virtual Memory. The operating system should effectively use the memory component as it directly impacts the overall efficiency and performance of the computer system (Khetan, 2002).
The Windows operating systems use a tree form of data structure rather the linked list. Each node of the tree...

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