3.5.6+Digital+&+Analogue+Data

=__**Digital Data and Analogue Data**__=


 * More on how to see how Analogue to digital conversion works can be found on pages 3.5.7 (Data interconversion) and 3.5.8 Conversion Applications **

**Digital Data**

 * Digital data is **discrete**
 * It is represented only via binary and can therefore not be perfectly continuous
 * Digital data is used in electronics since Binary is the only way to store data digitally(example: Computers)

**Analogue Data**

 * Analog data is **continuous**
 * It is not rounded off in any form
 * Analogue data can usually be represented in the form of a sine wave

At regular intervals analogue sound values are converted into binary numbers representing that or a data point.

As time passes more and more data is being stored digitally instead of in analogue form Many co-operations (such as the IBO who are trying to create exams to use on computers) are working in giving a totally digital experience to consumers

Note: Computers can only use Digital data. When the for example you scan in a document, the analogue data it receives for the document is converted into digital data in order for the computer to read the information.

Another example of digital representation of an analogue curve:

Last modified: 23rd March 2011 Last modified by: Daniel Gillo

Sources:
 * Jones, Richard. __Computer Science Java Enabled__. Victoria: IBID Press, 2004.