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Tianhe-2 or TH-2 ( Chinese: 天河-2; pinyin: tiānhé-èr; lit. 'Heavenriver-2', i.e. ' Milky Way 2') is a 3.86- petaflop supercomputer located in the National Supercomputer Center in Guangzhou, China. [3] It was developed by a team of 1,300 scientists and engineers. It was the world's fastest supercomputer according to the TOP500 lists for ...
Strange loop. A strange loop is a cyclic structure that goes through several levels in a hierarchical system. It arises when, by moving only upwards or downwards through the system, one finds oneself back where one started. Strange loops may involve self-reference and paradox. The concept of a strange loop was proposed and extensively discussed ...
The Pattern on the Stone: The Simple Ideas that Make Computers Work is a book by W. Daniel Hillis, published in 1998 by Basic Books ( ISBN 0-465-02595-1 ). The book attempts to explain concepts from computer science in layman's terms by metaphor and analogy. It aims to demystify computer science by demonstrating that complex processes can be ...
Outline of computer science. Computer science (also called computing science) is the study of the theoretical foundations of information and computation and their implementation and application in computer systems. One well known subject classification system for computer science is the ACM Computing Classification System devised by the ...
The Chomsky hierarchy (infrequently referred to as the Chomsky–Schützenberger hierarchy [1]) in the fields of formal language theory, computer science, and linguistics, is a containment hierarchy of classes of formal grammars. A formal grammar describes how to form strings from a language's vocabulary (or alphabet) that are valid according ...
Theoretical computer science is a subfield of computer science and mathematics that focuses on the abstract and mathematical foundations of computation. It is difficult to circumscribe the theoretical areas precisely.
Hierarchical control system. A hierarchical control system ( HCS) is a form of control system in which a set of devices and governing software is arranged in a hierarchical tree. When the links in the tree are implemented by a computer network, then that hierarchical control system is also a form of networked control system .
Class hierarchy. A class hierarchy or inheritance tree in computer science is a classification of object types, denoting objects as the instantiations of classes (class is like a blueprint, the object is what is built from that blueprint) inter-relating the various classes by relationships such as "inherits", "extends", "is an abstraction of ...