Compression
1.3What the syllabus asks of you
- Show understanding of the need for and examples of the use of compression
- Show understanding of lossy and lossless compression and justify the use of a method in a given situation
- Show understanding of how a text file, bitmap image, vector graphic and sound file can be compressed
Read the notes first
Chapter 1: Compression
Drill this topic
All 1 question on Compression, untimed — answer on paper, then mark yourself against the mark scheme.
Make a worksheet
Choose the years and how many questions, then print it with the answers on separate pages.
1 question
These are structured questions, answered in working rather than by picking an option, so they are not listed here one by one. The drill above puts each in front of you with its mark scheme to check against.

