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5 Written questions

5 Matching questions

  1. 24 bit color
  2. lossless compression
  3. vector advantage
  4. ASCII
  5. 8 bit color
  1. a image can scale to any size without increasing file size, shapes are fully editable by amending numbers that represent attributes eg change layer
  2. b 7 bit code representing (only) latin type alphabets and language symbols
  3. c 256 possible colours
  4. d no resolution information is lost
  5. e 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.

5 Multiple choice questions

  1. resolution dependant (zooming will show pixels), large file size for high resolution / high colour depth, limited editing - pixel operations only
  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. number of bits used to code a colour, aka colour depth
  5. each character needs more bits (twice)

5 True/False questions

  1. vector graphicimage can scale to any size without increasing file size, shapes are fully editable by amending numbers that represent attributes eg change layer

          

  2. two's complement (8 bit)represents negative and positive numbers in the range -128 to +127

          

  3. range7 bit code representing (only) latin type alphabets and language symbols

          

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

          

  5. 32 bit integer4 bytes with binary place values 2^0 to 2^31, maximum value (2^32)-1