We've recently launched two free online courses on the FutureLearn platform...
Representing Data with Images and Sound: Bringing Data to Life
Explore how computers do interesting things with data. You’ll discover how to represent and manipulate text, images, and sound, and learn about compression and other algorithms.
Programming 102: Think Like a Computer Scientist
Explore Python programming at an intermediate level. Discover how to break down problems into smaller parts, then design and apply algorithms to data. You’ll also explore list structures and their various uses.
Both courses started last week, but don't worry: you haven't missed anything as the pace is self-guided. You'll also have access to the content for up to six weeks after it ends.