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Category:МК-61/52: Difference between revisions
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[[File:MK61.jpg|200px|thumb|right|МК-61.]]
'''МК-61''' and '''МК-52''' are the most famous and popular Russian programmable calculators. They are the logical culmination of a series of programmable calculators, started by the Б3-34. The difference the МК-52 from the MK-61 is that the МК-52 provides additional expansion memory module (512 bytes).
Program memory of the calculator is 105 commands (bytes). They have 15 registers and stack memory of the four basic registers (X, Y, Z, T), and one additional (X1, to recover the result of a previous operation). This calculator uses the bracket-free (inverse) notation and stack programming language, which contains about 75 statements. This is an extension and continuation of a series of languages Б3-21, Б3-34, for which the backward compatibility. Attempted creation and further development of this family of languages (МК-161 and -152), but by the Soviet calculators is a mediocre relationship. The flowering of the national interest in this class of machines was in the late 70's - 80's of the last century.
Solutions XXVII CPSU Congress called for the widespread introduction of computer technology in all sectors of the economy. This requires massive development potential users of the features of computer application in view of its economic feasibility. In this task, great importance attaches to programmable calculators, which are the most accessible class of mainframes, high reliability, portability, ease of use and low cost of computer time. Programmable calculators are essential if you want relatively powerful wearable computing environments, and their use is economically feasible in all cases where the solution of the problem using a computer other classes is more expensive. The use of programmable calculators is particularly important when the mass learning the basics of computer science students and professionals, where the value used for the training of computer technology and its operation is paramount.
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