New submitter theclockworkcomputer writes "100 years ago tomorrow, 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. As this is about a program for a Turing Machine and not about a Turing Machine itself, I hope to be excused from the requirement of infinite tape."