Scratch is a programming language, created by MIT, that makes it easy to create interactive art, stories, simulations, and games. Explore your ideas and share your creations online.

That doesn't surprise Karen Brennan, a Scratch project leader at MIT's Media Lab, where Scratch was developed. "Our agenda isn't to create armies of programmers," Brennan says.

Ever wondered about what to prioritise when embarking on an ambitious PC built from scratch? It's not easy, but thankfully Alex has a number of handy tips to consider when starting out.