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1. What is Computation?
1. What is Computation?
Published: 2017/02/15
Channel: MIT OpenCourseWare
Computation -CXC/CSEC Maths Past Paper questions and solutions
Computation -CXC/CSEC Maths Past Paper questions and solutions
Published: 2011/09/27
Channel: Duet Lewis FLN
Lecture 2: What is Meant by Computation?
Lecture 2: What is Meant by Computation?
Published: 2012/08/08
Channel: Allen Institute
Computation of Income Tax by Vijay Adarsh | Stay Learning | (HINDI)
Computation of Income Tax by Vijay Adarsh | Stay Learning | (HINDI)
Published: 2016/12/27
Channel: StayLearning
Teaching Computation in Math : Math Tips & Calculations
Teaching Computation in Math : Math Tips & Calculations
Published: 2013/06/25
Channel: eHowEducation
Dismantle - Computation
Dismantle - Computation
Published: 2011/09/12
Channel: SouthCoastVibes
2. Models of Computation, Document Distance
2. Models of Computation, Document Distance
Published: 2013/01/14
Channel: MIT OpenCourseWare
Mod-01 Lec-01 What is theory of computation?
Mod-01 Lec-01 What is theory of computation?
Published: 2014/06/27
Channel: nptelhrd
Multi-Party Computation: From Theory to Practice
Multi-Party Computation: From Theory to Practice
Published: 2013/01/10
Channel: GoogleTechTalks
TEDxCaltech - Tony Hey - Feynman and Computation
TEDxCaltech - Tony Hey - Feynman and Computation
Published: 2011/03/04
Channel: TEDx Talks
What is THEORY OF COMPUTATION? What does THEORY OF COMPUTATION mean?
What is THEORY OF COMPUTATION? What does THEORY OF COMPUTATION mean?
Published: 2016/10/01
Channel: The Audiopedia
Computation and the Future of Mathematics
Computation and the Future of Mathematics
Published: 2013/01/25
Channel: University of Oxford
Computation in Natural Systems
Computation in Natural Systems
Published: 2012/05/14
Channel: Santa Fe Institute
Theory Of Computation 1,Introduction to TOC and DFA
Theory Of Computation 1,Introduction to TOC and DFA
Published: 2014/05/21
Channel: Gate Lectures by Ravindrababu Ravula
Theory Of Computation 61 -- Examples of Regular expressions
Theory Of Computation 61 -- Examples of Regular expressions
Published: 2014/06/28
Channel: Gate Lectures by Ravindrababu Ravula
Theory Of Computation 60
Theory Of Computation 60
Published: 2013/07/25
Channel: Gate Lectures by Ravindrababu Ravula
Computation with Percentages
Computation with Percentages
Published: 2014/01/07
Channel: Mometrix Academy
Joscha: From Computation to Consciousness (31c3)
Joscha: From Computation to Consciousness (31c3)
Published: 2015/09/24
Channel: Joscha Bach
Decimal Computation
Decimal Computation
Published: 2009/08/31
Channel: TeacherTube Math
Introduction to Theory of Computation
Introduction to Theory of Computation
Published: 2016/12/15
Channel: Neso Academy
Theory Of Computation lecture 65
Theory Of Computation lecture 65
Published: 2014/07/18
Channel: Gate Lectures by Ravindrababu Ravula
Evolutionary computation: Keith Downing at TEDxTrondheim
Evolutionary computation: Keith Downing at TEDxTrondheim
Published: 2013/11/04
Channel: TEDx Talks
How Computers Work: Computation (Part II)
How Computers Work: Computation (Part II)
Published: 2012/06/22
Channel: Joshua Hawcroft
Usapang SSS: Retirement pension and pension computation
Usapang SSS: Retirement pension and pension computation
Published: 2016/10/10
Channel: PTV
Theory Of Computation 33,Introduction to NFA
Theory Of Computation 33,Introduction to NFA
Published: 2013/07/23
Channel: Gate Lectures by Ravindrababu Ravula
Theory of Computation - Intro to Computer Science
Theory of Computation - Intro to Computer Science
Published: 2012/06/02
Channel: Udacity
Professor Steven Pinker - Neurons and Neural Computation
Professor Steven Pinker - Neurons and Neural Computation
Published: 2013/07/05
Channel: New College of the Humanities
Step-by-Step Computation of BMI : Exercising at the Gym
Step-by-Step Computation of BMI : Exercising at the Gym
Published: 2012/08/20
Channel: ehowhealth
The cellular basis of neural computation | Michael Hausser
The cellular basis of neural computation | Michael Hausser
Published: 2016/02/19
Channel: World Economic Forum
Theory Of Computation 4, DFA and problem
Theory Of Computation 4, DFA and problem
Published: 2014/05/08
Channel: Gate Lectures by Ravindrababu Ravula
Brian Cantwell Smith      The philosophy of computation    meaning, mechanism, mystery
Brian Cantwell Smith The philosophy of computation meaning, mechanism, mystery
Published: 2013/07/10
Channel: André Souza Lemos
Laplacian computation example
Laplacian computation example
Published: 2016/05/31
Channel: Khan Academy
13th Month Pay: Computation and Spending
13th Month Pay: Computation and Spending
Published: 2014/12/11
Channel: UNTV News and Rescue
Linear Algebra Example Problems - Matrix Determinant Computation #2 (4x4)
Linear Algebra Example Problems - Matrix Determinant Computation #2 (4x4)
Published: 2015/08/01
Channel: Adam Panagos
Theory Of Computation 2, Construction of minimal DFA and problems
Theory Of Computation 2, Construction of minimal DFA and problems
Published: 2013/07/19
Channel: Gate Lectures by Ravindrababu Ravula
DILEMMACHINE - Snake Eyes (Computation Remix)
DILEMMACHINE - Snake Eyes (Computation Remix)
Published: 2013/03/22
Channel: Computation
Theory Of Computation 37,convertion of  NFA to DFA
Theory Of Computation 37,convertion of NFA to DFA
Published: 2013/07/23
Channel: Gate Lectures by Ravindrababu Ravula
Theory Of Computation 59,families of languages
Theory Of Computation 59,families of languages
Published: 2013/07/25
Channel: Gate Lectures by Ravindrababu Ravula
Secure Multiparty Computation I
Secure Multiparty Computation I
Published: 2015/05/28
Channel: Simons Institute
Theory Of Computation 7,DFA of binary no which is divisible by 3
Theory Of Computation 7,DFA of binary no which is divisible by 3
Published: 2014/05/08
Channel: Gate Lectures by Ravindrababu Ravula
Secure Computation - Applied Cryptography
Secure Computation - Applied Cryptography
Published: 2015/02/23
Channel: Udacity
28c3: The coming war on general computation
28c3: The coming war on general computation
Published: 2011/12/28
Channel: 28c3
Theory Of Computation 35,Conversion of NFA to DFA
Theory Of Computation 35,Conversion of NFA to DFA
Published: 2014/05/08
Channel: Gate Lectures by Ravindrababu Ravula
Limits Of Computation - Intro to Theoretical Computer Science
Limits Of Computation - Intro to Theoretical Computer Science
Published: 2015/02/23
Channel: Udacity
Alan Turing: The theory of computation (#3)
Alan Turing: The theory of computation (#3)
Published: 2014/11/20
Channel: ouLearn on YouTube
Theory Of Computation 62 -- Examples of Regular expressions and identities of RE
Theory Of Computation 62 -- Examples of Regular expressions and identities of RE
Published: 2014/06/28
Channel: Gate Lectures by Ravindrababu Ravula
What is Computation -- Dr. Leslie Lamport, Microsoft
What is Computation -- Dr. Leslie Lamport, Microsoft
Published: 2011/06/12
Channel: Technion
The Landauer limit and thermodynamics of biological computation
The Landauer limit and thermodynamics of biological computation
Published: 2015/05/22
Channel: Santa Fe Institute
Lec-1 Errors in Computation and Numerical Instability
Lec-1 Errors in Computation and Numerical Instability
Published: 2010/10/18
Channel: nptelhrd
Studying Adaptive Architecture and Computation at The Bartlett
Studying Adaptive Architecture and Computation at The Bartlett
Published: 2014/01/21
Channel: The Bartlett, UCL Faculty of the Built Environment
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WIKIPEDIA ARTICLE

From Wikipedia, the free encyclopedia
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Computation is any type of calculation[1][2] that includes both arithmetical and non-arithmetical steps and follows a well-defined model understood and described as, for example, an algorithm.

The study of computation is paramount to the discipline of computer science.

Physical phenomenon[edit]

A computation can be seen as a purely physical phenomenon occurring inside a closed physical system called a computer. Examples of such physical systems include digital computers, mechanical computers, quantum computers, DNA computers, molecular computers, microfluidics-based computers, analog computers or wetware computers. This point of view is the one adopted by the branch of theoretical physics called the physics of computation as well as the field of natural computing.

An even more radical point of view is the postulate of digital physics that the evolution of the universe itself is a computation - pancomputationalism.

Accounts of computation[edit]

The mapping account[edit]

A classic account of computation is found throughout the works of Hilary Putnam and others. Peter Godfrey-Smith has dubbed this the “simple mapping account.”[3] Gualtiero Piccinini's summary of this account states that a physical system can be said to perform a specific computation when there is a mapping between the state of that system to the computation such that the “microphysical states [of the system] mirror the state transitions between the computational states.”[4]

The semantic account[edit]

Philosophers such as Jerry Fodor[5] have suggested various accounts of computation with the restriction that semantic content is a necessary condition for computation (that is, that what differentiates an arbitrary physical system from a computing system is that the operands of the computation represent something). This notion attempts to prevent the logical abstraction of the mapping account of pancomputationalism, or the idea that everything can be said to be computing everything.

The mechanistic account[edit]

Gualtiero Piccinini proposes an account of computation based in mechanical philosophy. It states that physical computing systems are types of mechanisms that, by design, perform physical computation, or “the manipulation (by a functional mechanism) of a medium-independent vehicle according to a rule.” Medium-independence allows for the use of physical variables with traits other than voltage (as in typical digital computers); this is imperative in considering other types of computation, such as that occurs in the brain or in a quantum computer. A rule, in this sense, provides a mapping among inputs, outputs, and internal states of the physical computing system. [6]

Mathematical models[edit]

In the theory of computation, a diversity of mathematical models of computers have been developed. Typical mathematical models of computers are the following:

See also[edit]

References[edit]

  1. ^ Computation from the Free Merriam-Webster Dictionary
  2. ^ "Computation: Definition and Synonyms from Answers.com". Answers.com. Archived from the original on 22 February 2009. Retrieved 26 April 2017. 
  3. ^ Godfrey-Smith, P. (201), "Triviality Arguments against Functionalism", Philosophical Studies, 145 (2): 273–95, doi:10.1007/s11098-008-9231-3 
  4. ^ Piccinini, Gualtiero (2015). Physical Computation: A Mechanistic Account. Oxford: Oxford University Press. p. 17. ISBN 9780199658855. 
  5. ^ Fodor, J. A. (1981), "The Mind-Body Problem", Scientific American, 244 (January 1981) 
  6. ^ Piccinini, Gualtiero (2015). Physical Computation: A Mechanistic Account. Oxford: Oxford University Press. p. 10. ISBN 9780199658855. 

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