Calculator

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Spotlight



Using Built-In Google Calculator (Google Guide)
Google Calculator Cheat Sheet (Google Guide)
7 Essential Financial Calculator Apps for Android and iPhone (GE Miller, MintLife)

Resources

These are organized by a classification scheme developed exclusively for Cosma. More…

General

Portal

Calculator.com: Directory of free online calculators
Martindale’s Calculators On-Line Center

Dictionary

calculator : a usually electronic device for performing mathematical calculations — Webster

Oxford, OneLook, Free Dictionary, Wiktionary, InfoPlease, Word Reference, Urban Dictionary

Thesaurus

Roget’s II (Thesaurus.com), Merriam-Webster Thesaurus, Visuwords

Encyclopedia

Electronic calculator is a small, portable, usually inexpensive electronic device used to perform the basic operations of arithmetic. Modern calculators are more portable than most computers, though most PDAs are comparable in size to handheld calculators. The first solid state electronic calculator was created in the 1960s, building on the history of tools such as the abacus, developed around 2000 BC; and the mechanical calculator, developed in the 17th century. It was developed in parallel with the analog computers of the day. Pocket-sized devices become available in the 1970s, especially after the invention of the microprocessor developed serendipitously by Intel for a Busicom calculator. Modern electronic calculators vary from cheap, give-away, credit-card sized models to sturdy desktop models with built-in printers. They became popular in the mid-1970s as integrated circuits made their size and cost small. By the end of that decade, calculator prices had reduced to a point where a basic calculator was affordable to most and they became common in schools. — Wikipedia

Britannica, Columbia (Infoplease)

Directory

DMOZ Open Directory Project (AOL)

Search

WolframAlpha, DuckDuckGo

Science

(Free) Science Apps, Converters and Calculators
Scientific calculator (Wikipedia)

Product

Shop Amazon eBay Gift Zazzle

Preservation

History




History of computers, Mechanical Calculators (Georgi Dalakov)
Mechanical Aids to Computation and the Development of Algorithms, Lecture 4
Mechanical Aids to Computation and the Development of Algorithms, Lecture 5

Museum

Vintage Calculators Web Museum (Nigel Tout)
The International Calculator Collector (Nigel Tout)
Old Calculator Museum (Rick Bensene)
Vintage Calculators (James Redin)
Electronic Calculator History (Alex Knight)

Library

WorldCat, Library of Congress, UPenn Online Books, Open Library

Participation

Education

The role of calculators in math education (Heidi Pomerantz & Bert Waits)

Course

10-Key Calculator Lesson (Merlot)

Forum

Reddit

Blog

WordPress

News

NPR Archives

Book

ISBNdb

Government

Document

USA.gov

Expression

Fun




Toy

Amazon Toys

Poem

OEDILF: The Omnificent English Dictionary In Limerick Form

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