Welcome!Computer 101Session 3WithLaura Crichton

Laura Crichton Associate of Applied Science

Baker College Computer Programming

Computer Enthusiast!!

File Structure Also Called

Directory Structure File System

Dos/Linux/Mac –all must use file structures to store and access the data.

Even the internet uses very similar file structures.

Computers can contain millions of files

Nearly all should be stored in folders. ALL user files should be stored in folders

Organizing Think of each drive as a very big filing

cabinet. One in which everything can easily be sorted.

In order to find things, they should be named with meaningful names, and they should be put into folders with meaningful names.

Folders Represented by Icons

The path is the string that tells us where files are located on the computer

Computer location:

Path: C:\MyDocuments\Computer 101 class Path: L:\DCIM\100MEDIA

Navigation = Paths

Path: C:\MyDocuments\Computer 101 class

C:\ drive letter, refers to Hard Disk

C:\MyDocuments\Computer 101 class

C:\ drive letter, refers to Hard Disk

C:\MyDocuments On the C: drive, the folder named “MyDocuments”

C:\MyDocuments\Computer 101 class

C:\ drive letter, refers to Hard DiskC:\MyDocuments

On the C: drive, the folder named “MyDocuments”

C:\MyDocuments\Computer 101 classOn the C: drive, inside the “MyDocuments” folder, the

folder named “Computer 101 class”

File Extensions Need some way to tell what program to

open a file with, the way this is done is by associating a file with an extension.

The extension is indicated by anything after the dot.

C:\MyDocuments\Computer 101 class\Photos\file-association.jpg

File Extensions - Images Images/Photos

.jpg .jpeg .bmp .png

File Extensions - Media Audio .mp3 .wav .wma .M4a .Mu3 .flac

Video .avi .flv .m4v .mpg .swf .wmv

File Extensions - Web .html .htm .php .css .asp .xhtml

File extensions – Office files Office files

txt – generic text file .rtf – rich text format .doc - MS Word file .docx - MS Word file (latest version) .xls - MS office ..odt – open office “word” file .pdf – portable document file

File Extension for Programs

.bat – DOS Batch file .exe – executable files

Should absolutely be from a trusted source

ALWAYS be suspect of an .exe or .bat in an email.

C:\MyDocuments\

Computer 101 class\Powerpoint Photos\

folder1.jpg

Then we can locate the file named “folder1.jpg”