Katana VentraIP

ENIAC

ENIAC (/ˈɛniæk/; Electronic Numerical Integrator and Computer)[1][2] was the first programmable, electronic, general-purpose digital computer, completed in 1945.[3][4] Other computers had some of these features, but ENIAC was the first to have them all. It was Turing-complete and able to solve "a large class of numerical problems" through reprogramming.[5][6]

Location

University of Pennsylvania Department of Computer and Information Science, 3330 Walnut Street, Philadelphia, Pennsylvania, U.S.

1945

Thursday, June 15, 2000

ENIAC was designed by John Mauchly and J. Presper Eckert to calculate artillery firing tables for the United States Army's Ballistic Research Laboratory (which later became a part of the Army Research Laboratory).[7][8] However, its first program was a study of the feasibility of the thermonuclear weapon.[9][10]


ENIAC was completed in 1945 and first put to work for practical purposes on December 10, 1945.[11]


ENIAC was formally dedicated at the University of Pennsylvania on February 15, 1946, having cost $487,000 (equivalent to $6,900,000 in 2023), and called a "Giant Brain" by the press.[12] It had a speed on the order of one thousand times faster than that of electro-mechanical machines.[13]


ENIAC was formally accepted by the U.S. Army Ordnance Corps in July 1946. It was transferred to Aberdeen Proving Ground in Aberdeen, Maryland in 1947, where it was in continuous operation until 1955.

Initiating Unit

Cycling Unit

Master Programmer – panel 1 and 2

Function Table 1 – panel 1 and 2

Accumulator 1

Accumulator 2

Divider and Square Rooter

Accumulator 3

Accumulator 4

Accumulator 5

Accumulator 6

Accumulator 7

Accumulator 8

Accumulator 9

History of computing

History of computing hardware

Women in computing

List of vacuum-tube computers

Military computers

Unisys

Arthur Burks

Betty Holberton

Frances Bilas Spence

John Mauchly

J. Presper Eckert

Jean Jennings Bartik

Kathleen Antonelli (Kay McNulty)

Marlyn Meltzer

Ruth Lichterman Teitelbaum

ENIAC simulation

Another ENIAC simulation

Pulse-level ENIAC simulator

3D printable model of the ENIAC

Q&A: A lost interview with ENIAC co-inventor J. Presper Eckert

Transcript of a video interview with Eckert by David Allison for the National Museum of American History, Smithsonian Institution on February 2, 1988. An in-depth, technical discussion on ENIAC, including the thought process behind the design.

Interview with Eckert

Charles Babbage Institute, University of Minnesota. Eckert, a co-inventor of ENIAC, discusses its development at the University of Pennsylvania's Moore School of Electrical Engineering; describes difficulties in securing patent rights for ENIAC and the problems posed by the circulation of John von Neumann's 1945 First Draft of the Report on EDVAC, which placed the ENIAC inventions in the public domain. Interview by Nancy Stern, 28 October 1977.

Oral history interview with J. Presper Eckert

Charles Babbage Institute, University of Minnesota. Chambers discusses the initiation and progress of the ENIAC project at the University of Pennsylvania Moore School of Electrical Engineering (1941–46). Oral history interview by Nancy B. Stern, 30 November 1977.

Oral history interview with Carl Chambers

Charles Babbage Institute, University of Minnesota. Travis describes the ENIAC project at the University of Pennsylvania (1941–46), the technical and leadership abilities of chief engineer Eckert, the working relations between John Mauchly and Eckert, the disputes over patent rights, and their resignation from the university. Oral history interview by Nancy B. Stern, 21 October 1977.

Oral history interview with Irven A. Travis

Charles Babbage Institute, University of Minnesota. Warren served as supervisor of the EDVAC project; central to his discussion are J. Presper Eckert and John Mauchly and their disagreements with administrators over patent rights; discusses John von Neumann's 1945 draft report on the EDVAC, and its lack of proper acknowledgment of all the EDVAC contributors.

Oral history interview with S. Reid Warren

ENIAC Programmers Project

The women of ENIAC

Programming ENIAC

How ENIAC took a Square Root

Mike Muuss: Collected ENIAC documents

chapter in Karl Kempf, Electronic Computers Within The Ordnance Corps, November 1961

ENIAC

Martin H. Weik, Ordnance Ballistic Research Laboratories, 1961

The ENIAC Story

at the University of Pennsylvania

ENIAC museum

from Ballistic Research Laboratories Report No. 971 December 1955, (A Survey of Domestic Electronic Digital Computing Systems)

ENIAC specifications

Michael Kanellos, 60th anniversary news story, CNet, February 13, 2006

A Computer Is Born

1946 film restored, Computer History Archives Project