Digital media

Forms of digital media that surround us:

• Mobile phones (Cellular phones)
• Compact discs
• Digital Video
• Televisions
• e-books
• Internet
• Video games
• e-commerce
• Game consoles
• Computers
• Interactive media

What number system is digital media based on? What two digits are used to code all digital data?


What is a bit what is byte?
Bit: Short for binary digit, the smallest unit of information on a machine, Computers are sometimes classified by the number of bits they can process at one time
Byte:Abbreviation for binary term, a unit of storage capable of holding a single character. On almost all modern computers, a byte is equal to 8 bits.

What is sampling rate? find an image on how sampling works.
The number of times per second that a sound wave is measured. A higher sampling rate provides superior sound quality.


How does colour depth or bit depth affect the appearance of an image? Find some images to illustrate the effect?
colour depth or bit depth is the number of bits used to show the colour of a single pixel in a bitmapped image or video, the higher the colour depth(or bit depth) the better quality of the as it gives a broader range of distinct colours.



Colour depth effects both still and video digital media. Sampling rate only effects video but not still media. Can you explain?
As sampling rate is the number of times per second that a sound wave is measured and still images don't require a sampling rate as they don't have sound hence a sound wave is not needed but colour depth effects both because there are still moving images seen so colour depth effects both.