john von neumann
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Physics World ◽  
2021 ◽  
Vol 34 (12) ◽  
pp. 59-60i
Author(s):  
Andrew Robinson

Andrew Robinson reviews The Man from the Future: the Visionary Life of John von Neumann by Ananyo Bhattacharya.


Informatics ◽  
2021 ◽  
Vol 8 (4) ◽  
pp. 71
Author(s):  
János Végh

Today’s computing is based on the classic paradigm proposed by John von Neumann, three-quarters of a century ago. That paradigm, however, was justified for (the timing relations of) vacuum tubes only. The technological development invalidated the classic paradigm (but not the model!). It led to catastrophic performance losses in computing systems, from the operating gate level to large networks, including the neuromorphic ones. The model is perfect, but the paradigm is applied outside of its range of validity. The classic paradigm is completed here by providing the “procedure” missing from the “First Draft” that enables computing science to work with cases where the transfer time is not negligible apart from the processing time. The paper reviews whether we can describe the implemented computing processes by using the accurate interpretation of the computing model, and whether we can explain the issues experienced in different fields of today’s computing by omitting the wrong omissions. Furthermore, it discusses some of the consequences of improper technological implementations, from shared media to parallelized operation, suggesting ideas on how computing performance could be improved to meet the growing societal demands.


2021 ◽  
Vol 15 (1) ◽  
pp. 65-70
Author(s):  
Krisztián Kun ◽  
Tamás Sárkány

Abstract MotoStudent is an engineering and economic competition for students to build a motorcycle that will take part in a real race on the Motorland Aragon track in Spain. The Kenji Racing Team, a student team from John von Neumann University, has been participating in this competition since 2016. The design of the motorcycle must be accurately documented towards to the competition organization, and economic and engineering tasks must be solved for the teams. In terms of engineering work, the development of innovation applied on the electric motorcycle is of paramount importance. Nowadays, one of the most popular development areas in motorsport is aerodynamics. Nevertheless, there are few studies about active aerodynamic systems. In our research we present the aerodynamics of motorcycles and the effect of passive and active wing systems on driving dynamics. With this knowledge, we detail the design steps of an active wing system.


2021 ◽  
Vol 15 (2) ◽  
pp. 11-15
Author(s):  
Ramazan Əzizxan oğlu Eyyubov ◽  
◽  
Leyla Elxan qızı Bayramova ◽  
Zeynəb Mirsəməd qızı Sadıqova ◽  
◽  
...  

The program is stored in the machine's memory from any external device. The control device organizes its execution, taking into account the program in memory. The mathematical-logical device performs mathematical and logical calculations in accordance with the entered commands. Thus, the computer performs calculations without human assistance. Key words: computer, software, device, information, scheme


2020 ◽  
Vol 24 (40) ◽  
pp. 1-27
Author(s):  
Angelica Pott de Medeiros
Keyword(s):  

O presente estudo tem como objetivo analisar sob um ponto de vista epistemológico a Teoria dos Jogos, baseando-se em von Neumann, Morgenstern e Nash, a partir de suas relevantes obras para o campo. Diante disso, foi realizada uma pesquisa bibliográfica visando sintetizar os principais aspectos epistemológicos e as principais correntes de pensamento científico e filosófico. A partir disso, foi possível avançar para a próxima etapa, que consistiu em uma análise documental das obras sob a ótica da epistemologia. Os resultados indicam que a Teoria dos Jogos aborda matematicamente o processo de tomada de decisão de agentes, cujo objetivo principal é a maximização da utilidade dos jogadores, que pautam-se em decisões racionais. Dessa forma, em seus conceitos é possível identificar, sobremaneira, características do utilitarismo e do positivismo.


Author(s):  
Stephen K. Reed

The power of abstract thinking is captured by the brilliance of John von Neumann who made many contributions to mathematics, computer science, and game theory. One definition of abstraction is that an instance exists only in the mind (the word truth) rather than in the environment (the word car). An advantage of the latter, concrete examples is they support the formation of visual images to aid recall. A second definition of abstraction is a focus on the most important attributes of an instance. These attributes include those that differentiate one object from another or one category from another. A third definition of abstraction is that an abstract idea applies to many particular instances of a category. Prototypes, rules, and schema are examples.


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