
Technical convergence
Analogue and digital information
Computers deal with information in digital form, i.e. as sequences of
binary
Os
and Is. Human beings, in contrast, handle audio and visual
information in analogue form, i.e. as sound waves and light waves.
Audio and video systems also handle information mainly in analogue
form. Technological convergence therefore demands that devices are
available which can convert information between these two forms.
In this section you will learn how information is encoded in
analogue form, the principles behind its conversion to digital form,
and the devices that are used for this. You will also lear ...