Unusual computers

18 entries

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• Classical billiards can compute
  • Published in 2025
  • Added on 2026-01-12
• The Cardboard Computer
  • Published in 2024
  • Added on 2024-04-10
• Flat origami is Turing Complete
  • Published in 2023
  • Added on 2023-09-29
• Envelopes are solving machines for quadratics and cubics and certain polynomials of arbitrary degree
  • Published in 2020
  • Added on 2021-01-06
• Computing Linkages
  • Published in 2010
  • Added on 2020-04-06
• A universal differential equation
  • Published in 1981
  • Added on 2019-05-09
• Performing Mathematical Operations with Metamaterials
  • Published in 2014
  • Added on 2019-03-26
• Mechanical Computing Systems Using Only Links and Rotary Joints
  • Published in 2018
  • Added on 2018-01-30
• The ternary calculating machine of Thomas Fowler
  • Published in 1997
  • Added on 2017-06-22
• Сетунь ВС (Setun Web Simulator)
  • Published in 2017
  • Added on 2017-06-22
• PAPAC-00, a Do-It-Yourself Paper Computer
  • Published in 1958
  • Added on 2017-03-21
• Programming quantum computers using 3-D puzzles, coffee cups, and doughnuts
  • Published in 2016
  • Added on 2016-09-23
• Magic: the Gathering is Turing Complete
  • Published in 2012
  • Added on 2012-09-11
• Robust Soldier Crab Ball Gate
  • Published in 2011
  • Added on 2012-04-15
• Hypercomputation: computing more than the Turing machine
  • Published in 2002
  • Added on 2011-02-09
• Implications of the Turing Completeness of Reaction-Diffusion Models, informed by GPGPU simulations on an XBox 360: Cardiac Arrythmias, Re-entry and the Halting Problem
  • Published in 2008
  • Added on 2010-09-30
• openttd logic gates
  • Published in 2005
  • Added on 2010-09-30
• Push-pull LEGO logic gates
  • Published in 1999
  • Added on 2010-09-30