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Here are some more information for Computer Purple:

How Computer Things are Made

It is quite interesting how various items are made, that we use in our computers and offices everyday.

The CD and DVD disks we use are made by sandwiching a special dye between layers of plastic and reflective metal coatings. When a laser beam strikes the dye, it alters it's properties, from transparent to opaque, making millions of these tiny little dark or light dots.This then becomes the data that we rely on to store stuff that is precious to us. This is why it's bad to leave your CDs in the sun, as it heats up this dye and alters it's properties once again, this time in an undesireable manner.

The normal CRT computer screen has millions of tiny blobs of phosphorus material stuck onto the back of the glass of the screen. They are arranged in clusters of three, consisting of the three primary colours - red, green and blue. If the desired colour is blue, the screen only bombards the blue blobs with electrons to make it glow. Same for green. If an inbetween colour, like purple, is required, then the electron beam has to be finely tuned to light up the blue blobs a lot, the green blobs a little bit, and the red ones are almost dark. If you take a very strong magnifying glass and hold it up to your screen, you can actually see the individual blobs, which are sometimes little stripes. And bear in mind that in a 1024 by 768 resolution screen, there are 786,432 of these groups of three pixels, and each and every one has to be lit up uniquely at least 50 - 80 times per second. All that just to make a picture on your screen!

Laser printers and photocopiers are quite amazing too. They have a drum inside coated with selenium, which is a light sensitive material. A laser beam draws the image of what you are printing onto this drum, causing the drum to be charged with static electricity where the picture is dark, and uncharged where the picture is light, in varying degrees. Then the toner or "ink" is brought into contact with this drum, and where there is static charge, it sticks to the drum, and where there isn't static charge, it doesn't stick. This is then applied to the paper with heat to melt or fuse the image onto the paper. You will notice that the paper is always warm when it comes out of a laser printer or a photocopier, but cold when it comes out of a bubblejet printer. All the static charge is them removed from the drum, which causes all the toner powder remaining to drop off, and the printer is then ready for the next page.

How people managed to think all this amazing technology out is rather mind boggling, as is the incredible speed that the various operations take place at. It's just as well that electrons travel at close to the speed of light, or none of these things would have even been possible.

So when your computer gives you problems, give it some slack. It's working really, really hard!

About the Author

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Duncan Kelly

Computer Monitor Going All Purple?

I have an old desktop computer from 2004. Anyway, the screen sometimes goes all purple for some reason. This use to happen when I had an older monitor, the one that came with purchase. I figured it was the monitor. But about a year ago I bought a new monitor when the old one broke.

reinstall windows always works
but before you do that:

try getting a new graphics card

MUSIC VIDEO: Flicker Gang – “Sour, Kush, or Piffy”
First official leak off of Flicker Gang’s upcoming mixtape release titled “Color Purple”. Mixtape scheduled to be released 4/20/2010

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