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Hello.

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

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in Windows 7.

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

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on your screen.

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

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

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individual squares.

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

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

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

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

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

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

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resolution.

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

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of pixels going across, and lots and lots[br]of pixels going down.

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

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and down.

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

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

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That's what happens when you see the triangle.

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

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

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

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here would be another pixel, and so on.

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So how do you change your screen resolution?

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

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

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you can see different options available to[br]you.

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

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pixels up and down.

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Suppose I were interested in having a lower[br]resolution.

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

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larger.

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Let's make this a little bit more extreme.

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

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

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

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

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

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

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Thank you very much.