This week - we use them everyday - at work, at home, to chat to our friends or listen to music - but how do computers actually work, what's inside them, and what will the computers of tomorrow look like? We'll be navigating through the past, present and future of computing, and lifting the lid - literally - on a PC to peek inside and see how it works. You can find transcripts and more information at www.nakedscientists.com and the music this week is from www.bensound.com.