1. Grade 8

2.  Pixel – Tiny dots that make up a picture shown on a monitor.  Resolution – How sharp and clear an image is. Usual measured by the amount of pixels.  Refresh rate – The frequency with which pixels that make up a picture is recharged.

3.  A device that sends information from the computer to the user.  Two categories of output devices. Output Devices SoftcopyHardcopy

4. CRT – Cathode Ray Tube LCD - Liquid Crystal Display

6.  Non Impact Printer – Transfers image by heat or b drawing.  Impact Printer – Transfers image by using the print head to strike the paper.

7. DOT MATRIX

8. INKJET PRINTER

9. LASER PRINTER

10. PLOTTER