Hao Wang used the letter "B" to indicate a simplified variety of these objects, while Martin Davis appended Emil Post's name to another reduced variety of them. One version of these objects features a black box with the capability to decide any problem in a single operation called an oracle, while Tibor Rado developed a function to determine the maximum operational time of one of them called the "busy beaver." They are formally defined as seven-tuples that contain a partial "transition" function
Hao Wang used the letter "B" to indicate a simplified variety of these objects, while Martin Davis appended Emil Post's name to another reduced variety of them. One version of these objects features a black box with the capability to decide any problem in a single operation called an oracle, while Tibor Rado developed a function to determine the maximum operational time of one of them called the "busy beaver." They are formally defined as seven-tuples that contain a partial "transition" function that directs their heads right and left on their tapes. For 10 points, identify these theoretical devices used to represent computational logic, named for a computer scientist who also names a test for artificial intelligence.
Hao Wang used the letter "B" to indicate a simplified variety of these objects, while Martin Davis appended Emil Post's name to another reduced variety of them.
{Turing machines}