Computer ScienceCode 9618

Compression

What this topic asks you to be able to do

  • demonstrate an understanding of why compression is needed, together with examples of where it is used
  • Demonstrate an understanding of lossless and lossy compression, and justify the choice of one method over the other for a particular situation
  • Demonstrate an understanding of the ways to compress a text file, bitmap image, vector graphic and sound file, including how run-length encoding (RLE) is used