Date: Lesson Meeting people Lesson materials appendix lead in activity

APPENDIX 2. GLOSSARY.

Complete these definitions with words from the box.


Resolution pixel aspect ratio colour depth video adapter plasma screen


1.pixel -the smallest unit on a display screen or bitmapped image (usually a coloured dot)

2 video adapter -an expansion card that generates the video signal sent to a computer display

3- aspect ratio the width of the screen in proportion to its height

4 plasma screen -also called gas discharge play

5 resolution -the number of pixels contained in a display, horizontally and vertically

6colour depth -the number of bits used to hold a colour pixel; this determines the maximum number of colours that can be displayed