How many ENIAC computers were built?

Answer 1

1946: The Eniac Computer is Unveiled

ENIAC (Electrical Numerical Integrator And Calculator) was originally developed during Word War II to perform complex trajectory calculations for artillary, but the war ended before the machine was operational. But it continued to be used after the war, performing calculations for the design of the hydrogen bomb, weather prediction, cosmic-ray analysis, thermal ignition, random numbers, and wind-tunnel design. The ENIAC contained 17,468 vacuum tubes, along with 70,000 resistors, 10,000 capacitors, 1,500 relays, 6,000 manual switches and 5 million soldered joints. It covered 1,800 square feet of floor space, weighed 30 tons, and consumed 160,000 Watts of electrical power, making the lights go dim in Philadelphia each time it was powered up. On October 2, 1955 the ENIAC was shut down for the last time, but by then inventors John Mauchly and John Presper Eckert had already had the UNIVAC computer on the market for several years.

Answer 2

the answer is 1946.

The first ENIAC demonstration system (2 panels) was turned on in June 1944, the first time the complete ENIAC system was turned on was early November 1945. ENIAC ran continuously for 2 months (December 1945 through January 1946) on a fusion bomb simulation for Los Alamos. ENIAC was revealed to the press and public in February 1946.

Answer 3

Depends on how much of ENIAC, the first demonstrator composed of just 2 panels was turned on and running in June 1944, a useable system with all 20 accumulators was turned on and running in September 1945, the complete system was first turned on as a system in early November 1945. Here is the timeline:

1. The cycling unit and one accumulator were completed and turned on in June 1944.
2. The initiating unit, remaining 19 accumulators, and function tables were completed and turned on in September 1945.
3. The multiplier and divider/square rooter were completed, added to the system and turned on in October 1945.
4. Final assembly and turn on of the complete ENIAC was early in November 1945.
5. John von Neumann used ENIAC through December 1945 and January 1946 to simulate Edward Teller's "Classical Super" fusion bomb design; proving it unworkable due to excessive radiative heat loss.
6. ENIAC was revealed to the press and public in February 1946.

Answer 4

Only one ENIAC computer was built. It consisted of a number of units wired together, and needed to be rewired to be reprogrammed. However, after 1948 a number of improvements were made to the original ENIAC computer

Answer 5

Only one was built. It is now on display in multiple pieces in various museums across the US and in other parts of the world.

As an interesting bit of trivia, in the mid-1990s, a modern design CPU was constructed to emulate the functionality of the ENIAC and it was built to be only about 5 millimeters by 7 millimeters in size. Compare this to the ENIAC itself which required almost as much room as a 4-bedroom house.

Answer 6

Only one ENIAC was built. Its parts are now on display in various museums around the US and other parts of the world.

As a bit of interesting trivia, a modern design CPU was created in the mid-1990s to perform the same functionality as the ENIAC and it measured a scant 5 millimeters by 7 millimeters in size. Compare this to the size of the ENIAC which took almost as much room as a 4-bedroom house!

Answer 7

ENIAC was built by the Moore School of Electrical Engineering; at the University of Pennsyvania in Philadelphia

Answer 8

Design and construction began in June 1943 and was finished in November 1945.

Answer 9

ENIAC was completed in November of 1945. It completely filled a 30 foot by 50 foot room. It had over 17,000 vacuum tubes and 70,000 resistors.

Answer 10

1. invented in 1942
2. project begun to build it in 1943
3. completed in 1945