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5 Written questions

5 Matching questions

  1. lossy compression
  2. 24 bit color
  3. range
  4. bit map advantage
  5. bit depth
  1. a limit for smallest value (near zero) and largest value on number line depends on number of bits for exponent (moves the point)
  2. b number of bits used to code a colour, aka colour depth
  3. c Digital color model that uses eight bits each for the three additive colors (red, green, blue.) It can reproduce 256 shades of each primary color. Total 16 million shades. True colour.
  4. d photos, images that can't easily be represented as shapes
  5. e some resolution data is lost, image quality affected

5 Multiple choice questions

  1. no resolution information is lost
  2. bitmap file size depends on the resolution and the bit depth for pixel colour; (length in pixels) x (breadth in pixels) x (bit depth)
  3. accuracy of a floating point value depends on number of bits for mantissa (significant digits)
  4. 7 bit code representing (only) latin type alphabets and language symbols
  5. limited types of image possible, drawings only

5 True/False questions

  1. unicode disadvantagelimited types of image possible, drawings only

          

  2. 8 bit color256 possible colours

          

  3. data compressionsome resolution data is lost, image quality affected

          

  4. Unicode16 bit code to represent characters from all the world's alphabets and symbols

          

  5. 32 bit integerDigital color model that uses eight bits each for the three additive colors (red, green, blue.) It can reproduce 256 shades of each primary color. Total 16 million shades. True colour.