abacus

Also known as counting frame, souan-pan, souanpan, suanpan, suan-p'an, suan-pan

thumb|Bi-quinary coded decimal-like abacus representing

AI overview

I cannot write an accurate overview based on the provided context, as it only contains a fragment describing an image caption without substantive information about what an abacus is or why it matters. To write a faithful, accurate overview, I would need more complete source material.

AI-generated from the Wikipedia summary — may contain errors.

Key facts

Chinese.t: 算盤
Chinese.s: 算盘
Chinese.l: "calculating tray"
Chinese.p: suànpán
Chinese.j: syun3-pun4
Chinese.y: syun-pùhn
Chinese.poj: sǹg-pôaⁿ
Chinese.tl: sǹg-puânn

via Wikipedia infobox

Wikidata facts

Image: RomanAbacusRecon.jpg

Show 4 more facts

Commons category: Abacus
Commons gallery: Abacus
exact match: wordnet-rdf.princeton.edu/wn30/02666196-n
Unicode character: 🧮

Sources (3)

via Wikidata · CC0

~24 min read

Article

31 sections

Contents

Etymology
History
Ancient Near East
Mesopotamia
Egypt
Persia
Europe
Greece
Rome
Medieval Europe
Russia
East Asia
China
Japan
Korea
India
Americas
Mesoamerica
Inca Empire
Types
School abacus
Binary abacus
Nano-abacus
Neurological analysis
Visually impaired users
See also
Notes
Footnotes
References
Further reading
External links

thumb|Bi-quinary coded decimal-like abacus representing

An abacus ( abaci or abacuses), also called a counting frame, is a hand-operated calculating tool which was used from ancient times, in the ancient Near East, Europe, China, and Russia, until largely replaced by handheld electronic calculators, during the 1980s, with some ongoing attempts to revive their use. An abacus consists of a two-dimensional array of slidable beads (or similar objects). In their earliest designs, the beads could be loose on a flat surface or sliding in grooves. Later the beads were made to slide on rods and built into a frame, allowing faster manipulation.