1. Some Basics of Computer Graphics

2. Interactive Computer Graphics
Interactive Computer graphics are graphics created using computer and, the representation and manipulation of image data by a computer.
Example movies and the video game industry.
They provide interactivity with the computer graphics

3. Resolution
Number of pixels per inch of an area without overlapping is called Resolution.
More the resolution, more clear is the image.
Measured as dpi(dots per inch)

4. Aspect ratio width-to-height ratio of an image Types of aspect ratio
4:3 used for many computer monitors and older, non-widescreen televisions.
1:1 an uncommon square-format aspect ratio ,occasionally used in photography.
5:4 is a computer monitor resolution, now more commonly used in mobile telephone cameras.
16:9 is the aspect ratio used for High Definition television, as well as movies.
14:9 is a compromise aspect ratio used to create a picture acceptable to both 4:3 and 16:9 televisions.
16:10 is utilized in the majority of widescreen computer monitors.

5. Dot pitch Dot Pitch is the distance between two pixels.
For a color display dot pitch is a measure of the size of a triad plus the distance between the triads.
0.22 to 0.25 mm is the optimum
Image Source :

6. Refresh rate
The refresh rate is the number of times in a second that a display hardware draws the data.
Data is picked from the frame buffer
Measured in Hertz (frames per seond)
Inadequate refresh rate results in flickering