Welcome! Computer 101 Session 3 With 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 Disk C:\MyDocuments On the C: drive, the folder named “MyDocuments” C:\MyDocuments\Computer 101 class On 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 .

C:\ MyDocuments\ Computer 101 class\ Powerpoint Photos\ folder1.jpg Then we can locate the file named “folder1.jpg”