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Article type: Research Article
Authors: Tiuryn, Jerzya
Affiliations: [a] University of Warsaw
Abstract: An M-groupoid is a simplified model of computer. The classes of M-groupoids, address machines, stored program computers and iterative systems are presented as categories – by a suitable choice of homomorphisms. It is shown that the first three categories are equivalent, whereas the fourth is weaker (it is not equivalent to the previous ones and it can easily be embedded in the category of M-groupoids). This fact proves that M-groupoids form an essentially better and reasonably simple approximation of more complicated models of computers than iterative systems.
DOI: 10.3233/FI-1977-1107
Journal: Fundamenta Informaticae, vol. 1, no. 1, pp. 71-91, 1977
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