All right, so let's look at file structures and file pads from an actual operating system.
This is Windows seven,
and the easiest place to start this is to take the traditional view,
and the traditional view is to go to computer
where you see a hard drive.
If I double click on this hard drive,
I will then see files and folders.
And if I go down to users,
I'll see myself
why do I not have permission?
I don't have permission because I'm logged in is a different user.
I go here, I have permission.
So that's part of what operating systems and file systems will do for you if multiple people use a given laptop or desktop or a server machine, and each person has their own files. This keeps other people from getting into your files. If they don't have your user counting your password and can't log in, is you
so obvious? Strangely enough, his desk cop.
So what do you think desktop might be? Death Topple? Actually, if you see what's on my Carter desktop,
where those actually stored there actually stored here,
here's all the files and folders
that actually what you see out here.
And that's because everything on the operating system everything on this computer has to be stored somewhere on the hard drive.
There is no desktop just sitting there.
The desktops actually just space somewhere on the hard drive
and by putting it under my name.
What it means is, if a second person logged in, they could have their desktop. They could have a different background. They wouldn't see my files because we'd all be under their profile.
So here's my my documents.
When you open my documents,
you get the my documents.
Now, ultimately, we can go up here
and go to documents,
and if we do that
notice, we get the exact same
So what happens if you think of that? Is this
documents? Button is a shortcut to take you straight to
my name, my documents
in the same way. If I go to my name,
I now have a shortcut going directly to death top downloads,
my documents, my music.
These are all shortcuts. If I went back into the hard drive,
I could actually find all of those
folders in here in the hard drive,
my videos, my music
So in a raw basis, the actually stored on the C drive
under my name.
But to me to allow you to not have to go there all the time by starting at the C drive and doing all this navigating
windows gives you a quick way
to get there
or a quick way to get there
to my documents
or a quick way to get the music
or other things that they thought you might want to get to
without having you understand how the whole operating system and how the whole file system works.
this system works well,
but you can also
come back here
and do everything. Be a command line.
So if you look at the command line over here on the edge of says C colon
and they go see users goes to J. Mays.
And if I type D i R for directory,
it will then show me
downloads, documents, desktop, all the things that you saw, his graphical images you can also see in a text based world
here. If I want to move from one folder to another, I can go change directory and I can go to
And now I'm in the documents directory. And if I type d i r
I see all the files and folders that Aaron the My documents area.
Now what? I want to go backward.
I go change directory.
Two dots will take me back
So figure change directory dot dot dot
Excuse me two dots. Now I'm back to
users and change directory
now all the way back to sea route.
And if I do D r there
I get the exact same thing showing up here.
Did I got
when I first clicked on the C drive?
All the same listings,
half delle of drivers, et cetera.
that's how files this story.
If you want to go to the Explorer window
now in Windows seven, you can actually just quick right here and it's Windows Explorer
and opens you directly to what it believes. The shortcuts are that you would want,
and they put it under a container called libraries.
But if you want to see see dr
there, See Dr,
you wanna see desk cop?
And if I want to change the view,
I can go over here and I can say
put him in a list.
I could say Put him in a list with details,
dates, all showing that view.
I can say
use extra large icons.
aren't really very convenient
unless you have an actual picture story.
Because then I can say Show me
And now if I have a picture, I can actually see the picture
if I show content.
So all these different ways, we're just different methods for showing
what's in the