The Turing test is a proposal for a test of a machine's capability to demonstrate intelligence. Described by Alan Turing in the 1950 paper "Computing Machinery and Intelligence," it proceeds as follows: a human judge engages in a natural language conversation with one human and one machine, each of which try to appear human; if the judge cannot reliably tell which is which, then the machine is said to pass the test. In order to keep the test setting simple and universal (to explicitly test the linguistic capability of the machine instead of its ability to render words into audio), the conversation is limited to a text-only channel (Turing originally suggested teletype machine; more advanced screen-based have been assumed later).
Reference:
http://en.wikipedia.org/wiki/Turing_test
Reference:
http://en.wikipedia.org/wiki/Turing_test
