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 <[email protected] > <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 [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/everything-list/792680c4-053e-48d6-88b7-efeb9004dbc1%40googlegroups.com.
