decimal abacus
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Abacus School — Abacus or abaco refers to calculations, especially the subject of direct calculations, using Hindu numerals without the help of the Abacus (a mathematic instrument) [Leonardo Fibonacci. “Fibonacci’s Liber Abaci: Leonardo Pisano’s Book of… … Wikipedia
Abacus — For other uses, see Abacus (disambiguation). A Chinese abacus … Wikipedia
Decimal floating point — Floating point precisions IEEE 754: 16 bit: Half (binary16) 32 bit: Single (binary32), decimal32 64 bit: Double (binary64), decimal64 128 bit: Quadruple (binary128), decimal128 Other: Minifloat · Extended precision Arbitrary precision… … Wikipedia
abacus — /ab euh keuhs, euh bak euhs/, n., pl. abacuses, abaci /ab euh suy , kuy , euh bak uy/. 1. a device for making arithmetic calculations, consisting of a frame set with rods on which balls or beads are moved. 2. Archit. a slab forming the top of the … Universalium
Roman abacus — The Romans developed the Roman hand abacus, a portable, but less capable, base 10 version of the previous Babylonian abacus. It was the first portable calculating device for engineers, merchants and presumably tax collectors. It greatly reduced… … Wikipedia
Bi-quinary coded decimal — is a numeral encoding scheme used in many abacuses and in some early computers, including the Colossus. The term bi quinary indicates that the code comprises both a two state ( bi ) and a five state ( quin ary) component. The encoding resembles… … Wikipedia
Napier's bones — Computing devices in Rabdology Napier s bones Promptuary … Wikipedia
Suanpan — (the number represented in the picture is 6,302,715,408) Chinese Abacus … Wikipedia
computer — computerlike, adj. /keuhm pyooh teuhr/, n. 1. Also called processor. an electronic device designed to accept data, perform prescribed mathematical and logical operations at high speed, and display the results of these operations. Cf. analog… … Universalium
Chinese numerals — Numeral systems by culture Hindu Arabic numerals Western Arabic (Hindu numerals) Eastern Arabic Indian family Tamil Burmese Khmer Lao Mongolian Thai East Asian numerals Chinese Japanese Suzhou Korean … Wikipedia
Positional notation — Numeral systems by culture Hindu Arabic numerals Western Arabic (Hindu numerals) Eastern Arabic Indian family Tamil Burmese Khmer Lao Mongolian Thai East Asian numerals Chinese Japanese Suzhou Korean Vietnamese … Wikipedia
