你将学到什么
Describe how computers represent things in binary
Explain common text encoding (ASCII and UTF-8)
Produce your own emoji in bitmap and vector form
Investigate the physics of sound, and how sampling allows computers to represent sounds
Compare lossy and lossless compression
课程概况
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 and sound and compression and other algorithms.
课程大纲
Units of information
Character encoding
Representing images
Representing sound
Data compression
面向人群
This course is designed at GCSE-Level to A-Level educators and learners.
This course has a focus on supporting educators looking for an engaging way of teaching GCSE Computer Science concepts.
We recommend that learners have a basic understanding of Python, for example gained from our Programming 101 course for beginners
An understanding of binary is helpful but not necessary (you may be interested in our How Computers Work course)
Due to its section on the representation of images, this course includes several steps and questions based around visual content.
