Doctor Who: Oh. [GASPS] I'm glad you're here. Slight problem. Your funny little planet is about to be destroyed unless you can help me. Doctor Who: [GASPS] [BREATHES HEAVILY] The daleks have ...

Narrator: This is your BBC micro:bit, even though it looks like the computers you're used to that's exactly what it is, a fully programmable computer that fits neatly into the palm of your hand.