Inventions

The Analytical Engine

Citation Formats

General Reference

Technology and Engineering Atlas. "The Analytical Engine." Accessed August 30, 2026. https://technology.interactiveatlas.org/inventions/the-analytical-engine.

APA Style

Technology and Engineering Atlas. (n.d.). The Analytical Engine. Retrieved August 30, 2026, from https://technology.interactiveatlas.org/inventions/the-analytical-engine

BibTeX

@misc{technologyandengineeringatlas-the-analytical-engine,
  author = {Technology and Engineering Atlas},
  title = {The Analytical Engine},
  year = {2026},
  url = {https://technology.interactiveatlas.org/inventions/the-analytical-engine},
  note = {Accessed August 30, 2026}
}

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

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