Are Screensavers Necessary

Dear Computer Lady,

I need the definitive answer: are screensavers necessary any more?

Thanks, Steve

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Dear Steve,

When one image was displayed on older Cathode ray tube (CRT) monitors for long periods of time, the phosphor coating on the inside of the glass screen would become darkened and a permanent shadow of the image was etched into the screen.

Screensavers were created to prevent these shadows by changing the image when the computer is not being used.

Almost all modern monitors now use LCD technology instead of the older CRT, so the only purpose that screensavers now serve is for entertainment or sometimes for locking the screen.

I use my screensaver during the day to play a slideshow of our photos. It is a nice reminder of all the fun times we have had.

So, while screensavers are no longer necessary, they are entertaining.

Elizabeth

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