lp4 file management xp

8/3/2019 LP4 File Management XP

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Randy Travers

Microcomputers Operating Systems Online

LP4: File Management

September 18, 2009

Program files & Data files

Program files are applications that allow the user to some type of problem, such as a payroll

application that lets the user create and maintain a payroll system for a company. Program files

are step by step instructions that direct a computer to do something-resolve the user¶s problem.

Program files are also called application packages, software packages, software, or just apps.

Generally, you purchase programs so you create data files. Data files are files that contain

information generated by the user, typically with an application. Most often only an application

program can use the data files directly. Data files are also called documents or document files.

Hierarchical filing system of a tree structured directory

Normally people work more efficiently when they group files and programs together logically.

Subdirectories give the capability of ³fooling´ the system so that you can create as many files as

you need. The only limitation is the capacity of the disk. Even though FAT32 no longer limits

the size of the root directory, subdirectories are an important part of organizing a disk. This is



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also true if you are using the NTDS file system. It too no longer limits how many files or

directories are located in the root directory.

This capability is called the hierarchical or tree structured filing system. In this system, the root

directory has entries not only for files but also for other directories called subdirectories, which

can contain any number of entries. Windows refers to the subdirectories as folders. The root

directory is represented by a backslash. All directories on the other than the root directory are

technically called subdirectories, yet the terms directory and subdirectory are used

interchangeably. Windows uses the terms folders and sub folders. All these terms, folders,

subfolders, directories and subdirectories are used interchangeably. Subdirectories are not limited

to a specific number of files. Subdirectories may have subdirectories of their own. Subdirectories

divide the disk into different areas.

The directory structure of a disk is like an inverted family tree with the root directory at the top

and the subdirectories branching off from the root. The root directory is the point of entry in the

hierarchical directory structure. Essentially, you are classifying and further classifying

information

Define the CD (pwd), MD (mkdir), and RD (m) commands

CD (pwd) ± Changes a directory

MD (mkdir) ± Makes or creates a directory

RD (m) ± Removes or erases a directory and its subdirectories.



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Screen Shots



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