hey today im working on the digital media task...

List at least 5 dital medias that surround us:

-cellphones

-compact discs

-didital video

-digital televisions

-interent

-video games

-game systems

What number system is digital data based on?

Digital data is based on the binary numeral system.

What two code digits are used to code all digital data ?

0 and 1 representing the abitrary data.

What is a bit? What is a byte?

A bit is a digit in thge binary numeral system it can have two values 0 or 1 a bit can either have a value of 1 or off (0).

A byte is the smallest unit of storage and it holds exactly 8 bits.

What is sampling rate?

Resulting Sample system and an Analog signal

The sampling rate,sample rate or sampling frequency defines the number of samples per second or (per other unit) taken from continous signal to make a descrete signal.

How does colour depth or bit depth effect the appearance of an image?

The number of "bits " is used to represent the colour of a single pixel in a bitmapped image or video.The colour depth or bit depth effects the appearance of the image because the more the bits the higher the quality of the image.

1bit( 2 colours)

2 bit (four colours)

4 bit(16 colours)

8 bit(256 colours)

Colour depth effects both still and video media. While sampling rate only effects video and not still still media. Why is this?
Sampling rate only applies to data that is recorded over rtime e.g video you take 30 photos per second and videos can take samples very often. The still media e.g an image is a sample it self therefore it can't have a sample.