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2. All visible colours can be made from mixing the three pri-
mary colours of red, yellow and blue.
3. Typical CRT-based displays occupy less space than LCD
displays.
4. Active-matrix LCDs do not use a technology called thin
film transistor or TFT.
5. The size of the screen is measured horizontally.
6. Display Resolution, also known as dots per inch (DPI), this
determines the number of pixels per linear inch
.
7. CRTs are more expensive than LCDs, but they are heavy,
can flicker and emit radiation.
8. LCDs offer better quality and take up less space, so they
are replacing CRTs.
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