Section 4.4
4 Data Representation
4.4 Graphics, Sounds And Other Interpretations
Binary patterns often represent text and numbers but they can also represent:
- Graphics
- Sounds
- Executive programs
- Boolean Values
4.4.1 Bitmapped Graphics
The PCs screen can be thought of as being divided up into a grid. Each square on
the grid is called a pixel or a picture element.
4.4.2 Digitised Sound
Sounds such as music or speech can be converted into binary form.
Sounds are analogue (continously variable) and need to be converted into digital
form. This is done using an analogue to digital converter (ADC).
Advantages
- Data integrity.
- Easier to edit.
Disadvantages
