Red is a primary color, you can't mix 2 to get red. Blue is primary, too, and so is yellow. You can mix any of the above colors to make another color. ie: red and yellow make orange. red and blue make purple. blue and yellow make green. yellow and green make light green. white and red make pink.
Difference between Optical Mouse and Laser Mouse. Key Difference: The optical mouse uses a light-emitting diode, while a laser mouse uses a laser in order to detect movement. A mouse is hardware that is required when trying to navigate on a desktop PC. However, many people these days also use a mouse on their laptops as it makes navigation easier.
The mouse then sends this movement data to your computer as mouse input, and the computer moves the cursor across your screen. Laser mice function similarly, but use infrared light instead of visible light. DPI Explained. Dots per inch (DPI) is a measurement of how sensitive a mouse is. The higher a mouseâs DPI, the farther the cursor on your screen will move when you move the mouse. A mouse with a higher DPI setting detects and reacts to smaller movements. A higher DPI isnât always better. You donât want your mouse cursor to fly all the way across the screen when you move your mouse a little bit.