A mathematical model of the calculations performed by a computer. Several types of computational models have been proposed, but the most famous is the Turing machine invented by AM Turing. A Turing machine consists of a finite-state control unit, a tape that extends infinitely to the left and right, and a head for reading the symbols on the tape (Figure). The tape is divided into squares, and each square contains one of a finite number of predetermined symbols. In the initial state, a finite number of squares on the tape contain the input symbol, and the remaining infinite squares contain blank symbols. Source: Heibonsha World Encyclopedia, 2nd Edition Information |
コンピューターが行う計算を数学的に表したモデルのこと。計算モデルとしては複数の種類が提唱されているが,もっとも有名なのはA.M.チューリング が考案したチューリング機械である。チューリング機械は,有限状態の制御部と,左右無限に伸びたテープと,そのテープ上の記号を読み取るためのヘッドからなる(図)。 テープは桝目に分られており,それぞれの桝目には,あらかじめ決められた有限種類の記号の一つが入る。初期状態ではテープの有限個の桝目に入力の記号が入っており,残りの無限個の桝目には空白記号が入っている。
出典 株式会社平凡社世界大百科事典 第2版について 情報 |
<<: Calculation amount - calculation amount
>>: Silica fertilizer (silica fertilizer)
Karl Marx's major work that clarified the fun...
An industry that produces and processes fabrics u...
...Several species are found in Taiwan and mainla...
A bribery scandal occurred over the adoption of te...
It is a mammalian animal of the order Carnivora a...
A perennial plant of the Asteraceae family, endemi...
…In England, serfdom was virtually abolished by t...
Peruvian socialist thinker. Born in Moquegua in t...
There are two known names for Russian legal codes....
In art history, the Edo period generally refers to...
Born: 810, Ireland [died] about 877. A representat...
American Federation of Teachers : The American tea...
…the translation of the ancient Greek word hoplit...
1710-1772 A Confucian scholar in the mid-Edo peri...
Pu. An element with atomic number 94. An artifici...