http://wiki.karljones.com/index.php?action=history&feed=atom&title=Von_Neumann_universal_constructor 2026-10-23T15:55:13Z Revision history for this page on the wiki MediaWiki 1.24.2 http://wiki.karljones.com/index.php?title=Von_Neumann_universal_constructor&diff=17958&oldid=prev 2016-09-06T19:10:35Z

<p></p> <table class='diff diff-contentalign-left'> <col class='diff-marker' /> <col class='diff-content' /> <col class='diff-marker' /> <col class='diff-content' /> <tr style='vertical-align: top;'> <td colspan='2' style="background-color: white; color:black; text-align: center;">← Older revision</td> <td colspan='2' style="background-color: white; color:black; text-align: center;">Revision as of 19:10, 6 September 2016</td> </tr><tr><td colspan="2" class="diff-lineno">Line 1:</td> <td colspan="2" class="diff-lineno">Line 1:</td></tr> <tr><td colspan="2">&#160;</td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">{{lowercase}}</ins></div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>'''John von Neumann's Universal Constructor''' is a self-replicating machine in a [[Cellular automaton|cellular automata]] (CA) environment.</div></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>'''John von Neumann's Universal Constructor''' is a self-replicating machine in a [[Cellular automaton|cellular automata]] (CA) environment.</div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr> </table>

Karl Jones http://wiki.karljones.com/index.php?title=Von_Neumann_universal_constructor&diff=17957&oldid=prev 2016-09-06T19:08:14Z

<p>Created page with &quot;&#039;&#039;&#039;John von Neumann&#039;s Universal Constructor&#039;&#039;&#039; is a self-replicating machine in a <a href="/index.php/Cellular_automaton" title="Cellular automaton">cellular automata</a> (CA) environment. == Description == It was designe...&quot;</p> <p><b>New page</b></p><div>'''John von Neumann's Universal Constructor''' is a self-replicating machine in a [[Cellular automaton|cellular automata]] (CA) environment.<br /> <br /> == Description ==<br /> <br /> It was designed in the 1940s, without the use of a computer.<br /> <br /> The fundamental details of the machine were published in von Neumann's book Theory of Self-Reproducing Automata, completed in 1966 by Arthur W. Burks after von Neumann's death.<br /> <br /> Von Neumann's specification defined the machine as using 29 states, these states constituting means of signal carriage and logical operation, and acting upon signals represented as bit streams.<br /> <br /> A 'tape' of cells encodes the sequence of actions to be performed by the machine.<br /> <br /> Using a writing head (termed a construction arm) the machine can print out (construct) a new pattern of cells, allowing it to make a complete copy of itself, and the tape.<br /> <br /> == See also ==<br /> <br /> <br /> * [[Cellular automaton]]<br /> * [[Codd's cellular automaton]]<br /> * [[Langton's loops]]<br /> * [[Nobili cellular automata]]<br /> * [[Quine (computing)]]<br /> * [[Self-replicating machine]]<br /> * [[Santa Claus machine]]<br /> * [[Von Neumann cellular automaton]]<br /> * [[Wireworld]]<br /> <br /> == External links ==<br /> <br /> * [https://en.wikipedia.org/wiki/Von_Neumann_universal_constructor von Neumann's Universal Constructor] @ Wikipedia<br /> <br /> <br /> [[Category:Computer science]]</div>

Karl Jones