Cosmo Learning
Cosmo Learning: Principles of Digital Communications I
A collection of video lectures from a course introducing students to the theory and practices in digital communications. Webpage includes twenty-four lectures from a professor at the Massachusetts Institute of Technology. Lectures vary...
University of Canterbury
University of Canterbury: Cs Unplugged: Image Representation
This activity explores how images are displayed, based on the pixel as a building block using data compression. The compression method used in this activity is based on the one used in fax machines, for black and white images.
University of Canterbury
University of Canterbury: Cs Unplugged
A collection of free learning activities that teach computer science through games and puzzles that use cards, string, crayons and lots of running around. The activities introduce students to computational thinking through concepts such...
Khan Academy
Khan Academy: Lossy vs. Lossless Compression
Check your understanding of lossy and lossless compression techniques, in this set of free practice questions designed for AP Computer Science Principles students.
Khan Academy
Khan Academy: Lossless File Compression
Practice using lossless text and image compression algorithms and considering what data can be compressed most easily.