SE Peeze Binkhorst sez, "100 years ago today, Alan Turing was born. To celebrate, I wrote a Universal Turing Machine in 100 Punchcards. I've uploaded a video to explain a small part of the read head (the Jacquard). One needle is shown out of a total of 28. The needle and anything else in the animation is not part of the Turing Machine, but is part of a machine that reads and executes the program, i.e. a computer I am working on, which is in part explained in this schematic. As the turingloom website is about a program for a Turing Machine and not about a physical Turing Machine, I hope to be excused from the requirement of infinite tape."
I write books. My latest is a YA science fiction novel called Homeland (it's the sequel to Little Brother). More books: Rapture of the Nerds (a novel, with Charlie Stross); With a Little Help (short stories); and The Great Big Beautiful Tomorrow (novella and nonfic). I speak all over the place and I tweet and tumble, too.