1. Compression techniques Year 12 AS

2. Learning Objectives Identify the compression methods used for documents Justify the chosen compression method used

3. What are the following file types.pptx – PowerPoint 2007.xlsx.pdf.gif.png.avi.mp3.docx What other file types have you used that are not listed? Look in your ‘My Documents’

4. Evidence Criteria Identification of method – Identify at least 3 relevant techniques for the 2 marks Justification of chosen method – Justify your chosen methods for at least 3 different files to gain the full 2 marks.

5. Create a document which evidences – The file types you used for each task – Why you used those file types? For example why did you use an excel file to record customer details for the mail merge as opposed to ……… Compression (reduce the memory size of a file) methods – Can you think of the different methods available?

6. Same Content – different file types and size……..why?

7. Grade Boundaries MarksGrade 28 - 34E 35 - 41D 42 - 48C 49 - 55B 56 - 70A