Signal transducers such as cameras, displays, microphones and loudspeakers handle information, ideally converting it from one form to another, but practically losing some. Information theory can be used to analyze such devices.
The transform is a useful device that has some interesting characteristics. On one side of a transform we might have the spatial domain, for example data describing an image in terms of brightness as a function of position. On the other side we might have coefficients describing the spatial frequencies
Open Caching is still relatively young. In fact, it is about 10 years younger than the first major introductions of D2C Broadcaster services like BBC iPlayer.
The UK’s sole DVB-T service is called Freeview, and it’s by far the most commonly used and widely recognised way to watch television in the country. Upcoming changes to Freeview, though, will affect the availability of certain BBC channels – and highlight future challenges which face anyone who uses radio
In an increasingly digital world, it may be useful to look at the amount of data needed to represent various media. Note that the amount of data is being considered; the amount of information will always be somewhat less than that.
