Calulations of file size

What is meant by the resolution of an image?

• The number of pixels in an image

• The number of bits in each pixel

The higher the resolution, the ____ the file size.

• Smaller

• Larger

What is the calculation to work out how many bytes a bitmap is?

• height / width * colour depth / 8

  
  

• • height * width * colour depth / 8

  
  

• height - width + colour depth / 8

  
  

• height * width / colour depth / 8

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A bitmap image is 20 pixels high and 5 pixels wide, with a colour depth of 2 bits. How many bits is this image?

• 500 bits

  
  

• 199 bits

• 200 bits

  
  

• 150 bits

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What language do computers use?

• Binary

• English

• unicode

Which 'bit' image would give the best picture quality?

• 2

• 4

• 24

• 16