Digital Media

Forms Of Digital Media

• internet
• video games
• mobile phones
• computers
• television

What number system is digital data based on? What two digits are used to code all digital data? 
The binary system is a communication that takes place inside every computer. These are expressed by the digits 0 and 1. All the numbers expressed in the binary system is a combination of these two digits.
What is a bit? What is a byte?
A byte is known as a sequence of 8 bits and a bit is a a binary digit that is represented as a 0 or 1.
What is “sampling rate”? Find an image that explains how sampling works

The number of samples per second (or per other unit) taken from a continuous signal to make a discrete signal.

How does Colour Depth (Color Depth) or bit depth effect the appearance of an image?
Find some images to illustrate the effect.

Colour depth is used to describe the maximum amount of colours that have been used in the image. The higher the numbers are of the colours, the more realistic the image will look. With  bitmap images, the chosen colour depth will affect the file size.

Difference between Sampling rate and Colour Depth

Sampling rate only affects video since it takes the sample per second, a video is a moving image so  therefore the sampling rate would take the images per second. However colour depth only affects still and video digital media. In still images, nothing is being produced so therefore a sampling rate is not affected.