Teach teens computing: Data representation

Sign-ups for this course on edX are closing on the 16 February 2026 and it will be removed from edX on 31 March 2026. While we are retiring this particular course, you can continue learning about computing and computing education with us for free by visiting our new online courses platform, the Training Hub . We hope to see you on the Training Hub soon. The Raspberry Pi Foundation team --- This online course from the Raspberry Pi Foundation explores how computers do interesting things with data. You'll discover how to represent and manipulate text, images, sound, compression, and other algorithms.

• Describe how computers represent things in binary
• Explain common text encoding (ASCII and UTF-8)
• Investigate the physics of sound, and how sampling allows computers to represent sounds
• Compare lossy and lossless compression
• Evaluate whether to use a bitmap or a vector image