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5 Written Questions

5 Matching Questions

  1. range
  2. 16 bit color
  3. image file size
  4. vector disadvantage
  5. precision
  1. a limited types of image possible, drawings only
  2. b accuracy of a floating point value depends on number of bits for mantissa (significant digits)
  3. c 64 thousand colours
  4. d bitmap file size depends on the resolution and the bit depth for pixel colour; (length in pixels) x (breadth in pixels) x (bit depth)
  5. e limit for smallest value (near zero) and largest value on number line depends on number of bits for exponent (moves the point)

5 Multiple Choice Questions

  1. 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.
  2. number of bits used to code a colour, aka colour depth
  3. 256 possible colours
  4. 16 bit code to represent characters from all the world's alphabets and symbols
  5. image stored as collection of shapes, each represented by set of numbers defining properties such as coordinates, line thickness, fill colour, layer level

5 True/False Questions

  1. data compressiongraphic file size made smaller by using special algorithms to reduce amount of data needed for bitmap

          

  2. bit map advantagephotos, images that can't easily be represented as shapes

          

  3. vector advantagelimited types of image possible, drawings only

          

  4. unicode disadvantageeach character needs more bits (twice)

          

  5. bit map disadvantagephotos, images that can't easily be represented as shapes

          

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