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Computing (Sound (Sample size/ Frequency (Sample Frequency/Rate (The…

- - - - The number of samples stored per second. The higher the number of samples per second,the higher the quality of the sound and the larger the file size
    - - The total number of bits in a sound. Calculated as the bit depth multiplied by the number of samples per second, multiplied by the number of seconds.
- - - - A pixel is attributed a number of bits (n)
        
        The number of combinations (2n) dictates that bit depth and therefore the number of colours can be represented.
        
        A higher bit depth gives a greater range of colour and a greater range of colour and a better quality of image.
        
        8 bits per pixel= 2 to the power of 8 = 256 colours
        
        16 bits per pixel= 2 to the power of 16 = 65,536 colours.
  - - - The are is defined by the image width and height in pixels.
  - - - It is information other than image data that is stored with a file. e.g.
        
        File size
        
        File type
        
        Resolution
        
        Author
        
        Colour depth in bits per pixel
        
        Date and time created