On Friday, July 19, 2019 at 5:21:04 PM UTC-5, John Clark wrote: > > On Fri, Jul 19, 2019 at 3:14 PM Philip Thrift <cloud...@gmail.com > <javascript:>> wrote: > > >> Do you know of anything simpler that can make calculations than read a >>> square, erase what you read and then print either a 0 or a 1 on it >>> depending on your state, then change into another state depending on what >>> you read, then either halt or move right or left and read another square. >>> John K Clark >>> >> >> *> Maybe a combinator logic machine:* >> * Common combinators in JavaScript* >> https://gist.github.com/Avaq/1f0636ec5c8d6aed2e45 >> > > Where is the physical implementation? JavaScript needs hardware, without > that it's just a sequence of squiggles that can't calculate 2+2. A Turing > Machine *IS* hardware. > > John K Clark >
http://mathworld.wolfram.com/TuringMachine.html "A Turing machine is a theoretical computing machine invented by Alan Turing (1937) to serve as an idealized model for mathematical calculation." A Turing machine is a mathematical entity, i.e., *a Turing machine is a fictional object*. @philipthrift -- You received this message because you are subscribed to the Google Groups "Everything List" group. To unsubscribe from this group and stop receiving emails from it, send an email to everything-list+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/everything-list/792680c4-053e-48d6-88b7-efeb9004dbc1%40googlegroups.com.
