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Comment Re:seems fair (Score 2) 48

A Turing Machine is comprised of a tape, a wheel, a read/write head and a control. The program on the website is merely the rule table inside the control. The Jacquard and some other parts of the clockwork computer, of which also a schematic exists can be regarded as a the missing parts minus the tape. There is no actual tape, but the program thinks the memory of the computer is the tape and uses that. The memory has only 12 nibbles of storage, but at 12 punchcards per minute, it takes hours before it runs out of memory. By then everyone is already to bed. Reading the comments, I think few get that the animation is really about a mechanical computer, not about a Turing Machine.

Submission + - A Universal Turing Machine in 100 Punchcards (

theclockworkcomputer writes: "Tomorrow 100 years ago 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."

Submission + - A Universal Turing Machine in 100 Punchcards (

theclockworkcomputer writes: Not long ago, [an old machine]( fell down from a hot air balloon one kilometer south of the center of Paris. One person was killed. The machine was completely destroyed when it hit the ground. Among the parts of scattered cherubs and gold leafs, a [train of punchcards]( was found that contained a program similar to a Turing Machine discovered only very recently. A [video]( is included that shows a small part of the Jaquard.

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