Who built the ENIAC?

Question

BlackTom AI · Accepted Answer

ENIAC was built by John Mauchly and J. Presper Eckert.

1) Relevant knowledge points and concepts
- ENIAC stands for Electronic Numerical Integrator and Computer, one of the first large-scale, general-purpose electronic digital computers.
- It was developed during World War II at the University of Pennsylvania’s Moore School of Electrical Engineering.
- Key developers: John Mauchly (physicist) and J. Presper Eckert (electrical engineer). Project funded by the U.S. Army to compute artillery firing tables; work spanned 1943–1945 and public unveiling occurred in 1946.

2) Step-by-step reasoning
- Identify the historical project: ENIAC is widely documented as the Mauchly–Eckert machine.
- Cross-reference the answer options for names associated with early computing and those tied specifically to ENIAC.
- Select the pair whose documented roles match design, construction, and management of ENIAC.

3) Intermediate facts (no numerical calculations required)
- Construction used ~17,468 vacuum tubes, enabling high-speed electronic calculation compared to mechanical machines.
- The team led by Mauchly and Eckert designed hardware and oversaw implementation at the Moore School.

4) Why the correct answer is correct
- Primary historical records, contemporary reports, and authoritative histories of computing credit John Mauchly and J. Presper Eckert as the builders/designers of ENIAC. They are the engineers who planned and executed the project and are routinely named together (Mauchly & Eckert) in computing history.

5) Why the other options are incorrect (brief)
- John Atanasoff & Clifford Berry built the Atanasoff–Berry Computer (ABC), not ENIAC.
- Charles Babbage, Ada Lovelace, Gottfried Leibniz, Joseph Marie Jacquard lived much earlier and worked on mechanical concepts.
- Alan Turing and John von Neumann contributed theoretical foundations/architecture but did not build ENIAC.
- Grace Hopper, Doug Engelbart, Herman Hollerith, Thomas Watson, and companies like Apple, Microsoft, Xerox PARC or The Tabulating Machine Company were not the builders of ENIAC.

6) Conclusion
This confirms the correct answer: Mauchley & Eckert.

Who built the ENIAC?Single choice

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