Digital Media

There are many forms of digital media that surround us in our everyday day lives. Digital media refers to any ype of medai that is in an electronic or digital format for the convenience and entertainment of people today. Some examples of digital media can include music files such as mp3 or wma files, video's found on the internet at popular websites, animated flash files, graphic design files, and images to create interactive websites or games.

A bit  is the basic unit of information in computing and telecommunications. It is also the amount of information stored by a digital device or other physical system that exists in one of two possible distinct states. On the other hand, a byte is a unit of digital information in computing and telecommunications thart most commonly consists of eight bits.

A sampling rate defines the number of samples per second (or per other unit) taken from a continuous signal to make a discrete signal. This is a diagram representing how sampling rate works.

Analog Signal

Sampled Signal

Colour depth affects the apperance of an image by altering the colour quality depending on the amount of bytes or bits in that picture. Eg. 1 or 2 bits in an image will only result in a monochrome coloured image. Whereas is you have an image with more bytes you will get a better quailty image with 64 bytes being the largest at the moment.

Sampling rate only affects video as it takes the sample per second. A video is a moving image and therefore the sampling rate would take the images per second. However colour depth only affects still and video digital media. Nothing is produced in still images and therefore a sampling rate is not affected.