Hello.

I'd like to speak with you today about screen
resolution and changing the screen resolution

in Windows 7.

Before I do that, however, I'd like to talk
a little bit about how images are displayed

on your screen.

Imagine, if you will, that your screen is
overlaid with a very finely meshed grid.

Now, in point of fact, the grid would be so
fine that you would not be able to see the

individual squares.

Pretend that each square could be exactly
one color: It could be yellow, or it could

be green, but it can't be yellow and green.

Each of those squares would be called a "picture
element," or a pixel, and your monitor is

going to be a fixed, physical size -- you
can't stretch your monitor or shrink your

actual monitor, but you can change how many
pixels are displayed on your monitor: Pixels

going across for your horizontal resolution,
and pixels going up and down for your vertical

resolution.

Now I 've got a Paint image here that is currently
simulating a high resolution; lots and lots

of pixels going across, and lots and lots
of pixels going down.

As I zoom in on this image, I am simulating
having fewer and fewer pixels going across

and down.

If you are having fewer pixels being displayed
on the monitor, and the monitor is a set size,

and the pixels are going to cover the entire
monitor, each pixel will have to be larger.

That's what happens when you see the triangle.

The way Paint stores images, it stores colors
within specific pixels, and as I zoom in,

I get to the point where the image is pixelated;
I can actually see where the individual pixels

would be, so I can see that this little square
here would be one pixel; this little square

here would be another pixel, and so on.

So how do you change your screen resolution?

You right-click on a blank part of the screen,
and choose "Screen Resolution."

You should see "Resolution" with a drop-down
list, and if you click on the drop-down arrow,

you can see different options available to
you.

My monitor is currently set to have the highest
resolution being displayed: 1680 across; 1050

pixels up and down.

Suppose I were interested in having a lower
resolution.

Maybe my eyesight's not quite so good and
I'd like to have things look a little bit

larger.

Let's make this a little bit more extreme.

I'd like to see how this looks, so I'll click
on "Apply," and when I click on, "Apply,"

I am given the options: Do I want to keep
these settings or do I want to revert back?

If I don't make any specification, it will
automatically revert back to my original settings.

This is a failsafe mechanism, in case I wound
up making changes such that I couldn't even

see what I was doing on the screen. It has
since reverted back, and I'm going to cancel

out of here, and so you have now seen how
you can change the resolution of your screen.

Thank you very much.