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Logical Abacus or
Logical Piano
Based on
Boolean Algebra
Photo Source
Wikipedia
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A logical Piano or Abacus Logic, is based on a digital device from: The computer, laptop or pc.
Also known as a "machine logic or logical piano" logical abacus is analogous to what is considered (mathematics) Normal. It is based on the principle of Canonical form - Boolean algebra very similiar to Tables of Truth. Uses 4 terms with their 16 possible combinations and corresponding negatives, unlike the traditional abacus, the abacus uses Logical or Logical Piano: Terms, words, or logical propositions for syllogisms instead of numbers, the archaic basis of modern computers. These logical statements are based on Boolean algebra logical problem solving.
Even earlier, the numbers were invented, and counting devices were used for calculations every day, one of these devices was: The abacus, allowed and facilitated, the rise of good traders and accurate data on the purchase and sale of goods .
The logical abacus was not created as we know it today, but instead was the result of a series of continuous improvement throughout the centuries. "With the passage of time, the abacus were inserted, slots small pebbles and then wires or rods on which counters could move freely back and forth" (Bogomolny). The most recent and primitive or basic, you know the abacus, is a kind of frame, often made of wood, which is held firmly to the bars or wires, with the respective sliding beads or spheres mounted freely in them.
The Piano Abacus Logic or Logical: It is built to show all the possible 16 in total, of a set of logical terms, Boolean algebra in positive or negative ways, in addition, the way in which these combinations are also affected by the addition Attributes or other words limiting, ie mechanically simplify the logical problem solving. These instruments or qualities and / or more or less elaborate developments, is what is known as "Slate logic", which were written in vertical columns all combinations of symbols or letters that logically could be done in a number of terms , ie a consistent or logical sequential order to facilitate understanding and usage.
Piano Evolution Logical or Logical Abacus - (Types of Abacus: Abacus Logic or Logical Piano)
Obviously with the advancement of technology, operations were abolished or obsolete combinations and added new specific needs and / or improved existing ones according to their purpose, all in order to simplify, streamline and facilitate, both use their understanding , and it may physically or electronically, however modern computers in their essence, are predicated on Canonical form - Boolean algebra very similiar to Tables of Truth, piano course, the traditional abacus, basic leguajes programming as: ADA programming language, invented by smart women Ada Lovelace, a scientist who died without knowing what was your mind advanced for its time, in the nineteenth century, the combination of all these and other tools, these and other programming languages or logical basic software and hardware environment improvement and development "machines" are the basis of all modern communication technologies and especially computers and calculators, of course we can not deny that the improvement and adaptation Constant them by modern scientists, is what has allowed us to enjoy many sophisticated technological marvels of our time, which make our lives easier and give us comfort and speed.
Logical Piano in abacus or Logical combinations enroll each in a single sheet of wood or similar material, which is moved by a key; meantime incompatible combinations can be mechanically removed at will, according to inconsistencies of local series.
Prime examples of such machines are the William Stanley Jevons (Logical Piano), John Venn and Allan Marquand.
In the modern world, the abacus as we know it today, does not look for anything, as it did when it was originally invented. In ancient times, the abacus was a very simple device that was used to count the numbers, ie was implemented only for arithmetic of addition and subtraction only.
Today, traditional physical abacus, still keeps its structure with rods and spheres, which move freely on the bars, but it is much more developed. Newest traditional abacus, invented by Lee Kai-chen, contains four decks, in which more complex operations can be done, "Multiplication and division are provided with this modification to the abacus, and includes instructions for determining the square roots and cube roots of numbers ", we are talking here of a semi-logical abacus. Vice from the computer, laptop or pc.