Intro
Objectives
- Explain the purpose and need for data compression
- Understand that compression reduces the size of a file
- Understand the impact of compression, including:
- Less bandwidth required
- Less storage space required
- Shorter transmission time
- Understand how files are compressed using lossy and lossless compression methods
- Explain how data can be compressed using run length encoding (RLE) using frequency/data pairs
- Understand how reducing resolution, colour depth or sample rate results in data being permanently removed
Resources
Video
runtime 5:09
runtime 5:19