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The Analytical Engine

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The Analytical Engine was a mechanical general purpose calculating machine designed by Charles Babbage beginning in 1837, with a separate store for numbers and a mill for arithmetic anticipating a computer's memory and processor. It was never built in Babbage's lifetime, for want of funding and precision manufacturing, but Ada Lovelace's 1843 translated notes on it, three times longer than the paper they annotated, included what is recognized as the first published algorithm written for any computing machine.

Facts
Patent or First-Use Date
1837-01-01 1
Babbage's design was first described/proposed in 1837; the Analytical Engine was never built in his lifetime and was never patented.
Year
1837 2
Significance
Though never built, the Analytical Engine's architecture, a store and a mill exchanging data under conditional program control, is recognized as the conceptual ancestor of the modern computer, and Ada Lovelace's notes on it are recognized as the first published computer program. 2
Cross-Tradition Connections

Associated With

Ada Lovelace, Engineers

Lovelace's 1843 translated notes on the Analytical Engine, three times longer than the paper they annotated, included what is recognized as the first published algorithm written for any computing machine.

Source Encyclopaedia BritannicaEncyclopaedia Britannica editors

In Field

Source Encyclopaedia BritannicaEncyclopaedia Britannica editors

Invented By

Source Encyclopaedia BritannicaEncyclopaedia Britannica editors

Preceded By

Charles Babbage explicitly modeled the Analytical Engine's punched-card input on Jacquard's loom.

Source Jacquard Machine (Wikipedia)Wikipedia contributors

Predecessor Of

Source Encyclopaedia BritannicaEncyclopaedia Britannica editors
Sources
1. Analytical Engine (Wikipedia)
Wikimedia FoundationLead section
Quote, Lead section
It was first described in 1837 as the successor to Babbage's difference engine, which was a design for a simpler mechanical calculator.
View the Source
2. Encyclopaedia Britannica
Encyclopaedia Britannica editors, Encyclopaedia Britannica, Inc.
Jacquard Machine (Wikipedia)
Wikipedia contributors, Wikimedia FoundationPreceded By: The Jacquard LoomView the Source
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