Digital Media

5 forms of Digital Media

• Digital Camera
• Digital Radio
• Digital audio
• Video games
• Internet

The system which digital data is based on is BINARY NUMERICAL SYSTEM and the two numbers which are used to code all digital data are 1 and 0.

What is a bite? What is a byte?

A byte is a unit which is built up of bits. Bits are the smaller units of information.

Sampling rate is the frequency of sampling per unit time.

This is one example of a sampling signal (on the left).

The amount of bits per pixel rely on the colour depth of the photo or picture. The more bits there are on one pixel the more colour and the more clearer photo or picture is.

2 bit picture

4 bit picture (below)

8 bit picture (below)

24 bit picture (below)

The reason behind why sampling rate only applies to movement and not still media is that is can't make still media move. However colour depth works on both movement and still media as they both contain colour.