Turing Machine Equivalents
A Turing machine is a hypothetical device with an infinite memory capacity, first conceived by Alan Turing in 1936. The machine manipulates symbols on a potentially infinite strip of tape according to a table of rules, and can be adapted to simulate the logic of any computer algorithm.
While none of the following models have been shown to have more power than the single-tape, one-way infinite, multi-symbol Turing-machine model, their authors defined and used them to investigate questions and solve problems more easily than they could have if they had stayed with Turing's a-machine model.
Read more about Turing Machine Equivalents: Machines Equivalent To The Turing Machine Model, Tape-based Turing Machines, Register Machine Models, Machines With Input and Output, Other Equivalent Machines and Methods
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“Above all, however, the machine has no feelings, it feels no fear and no hope ... it operates according to the pure logic of probability. For this reason I assert that the robot perceives more accurately than man.”
—Max Frisch (1911–1991)