Monitors

Monitors! One of the most important yet under appreciated parts of your computer. The monitor, simply put, is the screen you view everything on.


Their are a couple of different monitor options you can choose from:
- monitors come in a range of sizes
- newer TVs can be used as monitors
- all in one computers are built into their monitors
- monitors CRT or LCD screens.
- CRT (Cathode Ray Tube) use red green and blue light to create images. CRT devices are usually bulky and do not display hi def images
- LCD (Liquid Crystal Display) use crystals to display a wider range of colours. LCD devices take up less space and show higher quality images, but their screens can be easily damaged.


How CRT and LCD work

CRT, simply put, shines a sequence of red, green, and blue lights through tubes to create images.

LCD screens are made up of several layers. One layer shines white light (which is made of all colors) through, other layers block certain colors from shining through, and the last layer displays the result.


Things you should never do to your monitor
- don't hit or drop it
- don't poke it if you have a LCD (soft screen monitor)
- don't put a magnet or magnetic devices near or on your monitor
- don't try to eat it when you're hungry


Things you should do to your monitor
- turn it off when you're not using it
- wipe it and your keyboard down with disinfectant wipes every so often
- dust it off every so often
- treat it kindly

Things you could do to your monitor...but can be weird
- put stickers on it
- give it a name
- give it a personality
- call it your boyfriend


Random facts about monitors
- when there is a black dot on your screen this is what is called a "dead pixel." This only happens on LCD screens.
- pixels are tiny squares of colour that when grouped together make an image. On a LCD screen there are thousands of little pixels. When one of these pixel lights burn out it leaves a black spot--the dead pixel.
- higher resolution screens mean that a screen has more colour variety and more pixels to show details clearer.
- LCD technology was originally used for laptops, then desktops, and now TVs too.
- CRT technology is why TV's nickname is "the tube"

Assignment

- Get on a computer and appreciate your monitor.

- open up a program you never used before and learn what it's about. Use it, create something with it, and write a comment on the blog about what it's about. When you're done report to me about what you learned.


Question Review

1. LCD stands for...
A Liquid Chlorine Display
B Liquid Carbon Dating
C Liquid Crystal Display
D Liquid Carbon Display

2. Which of these devices use LCD technology?
A TV
B Laptop
C Desktop
D All of the above

3. What does CRT stand for?
A Crystal Ray Tube
B Cathode Ray Tunnel
C Crystal Ray Tunnel
D Cathode Ray Tube

4 What colors does CRT use to display images?
A red, yellow, blue
B red, green, blue
C red, yellow, green, blue
D all of them

Extra credit

What kind of monitors do the desktop computers have? (at SMART)

A CRT
B LCD