Editing ENIAC (section)

==Main parts==
[[File:ENIAC, Ft. Sill, OK, US (78).jpg|right|thumb|The bottoms of three accumulators at Fort Sill, Oklahoma, US]]
[[File:ENIAC function table at Aberdeen.jpg|thumb|A function table from ENIAC on display at Aberdeen Proving Ground museum]]

The main parts were 40 panels and three portable function tables (named A, B, and C). The layout of the panels was (clockwise, starting with the left wall):
;Left wall
* 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

; Back wall
* Accumulator 10
* High-speed Multiplier – panel 1, 2, and 3
* Accumulator 11
* Accumulator 12
* Accumulator 13
* Accumulator 14

; Right wall
* Accumulator 15
* Accumulator 16
* Accumulator 17
* Accumulator 18
* Function Table 2 – panel 1 and 2
* Function Table 3 – panel 1 and 2
* Accumulator 19
* Accumulator 20
* Constant Transmitter – panel 1, 2, and 3
* Printer – panel 1, 2, and 3
An IBM card reader was attached to Constant Transmitter panel 3 and an IBM card punch was attached to Printer Panel 2. The Portable Function Tables could be connected to Function Table 1, 2, and 3.{{sfn|Haigh|Priestley|Rope|2016|pp=46, 264}}

===Parts on display===
[[File:ENIAC Penn2.jpg|thumb|250px|Detail of the back of a section of ENIAC, showing [[vacuum tube]]s]]

Pieces of ENIAC are held by the following institutions:
* The [[University of Pennsylvania School of Engineering and Applied Science|School of Engineering and Applied Science at the University of Pennsylvania]] has four of the original forty panels (Accumulator #18, Constant Transmitter Panel 2, Master Programmer Panel 2, and the Cycling Unit) and one of the three function tables (Function Table B) of ENIAC (on loan from the Smithsonian).{{sfn|Haigh|Priestley|Rope|2016|pp=46, 264}}
* The [[Smithsonian Institution|Smithsonian]] has five panels (Accumulators 2, 19, and 20; Constant Transmitter panels 1 and 3; Divider and Square Rooter; Function Table 2 panel 1; Function Table 3 panel 2; High-speed Multiplier panels 1 and 2; Printer panel 1; Initiating Unit){{sfn|Haigh|Priestley|Rope|2016|pp=46, 264}} in the [[National Museum of American History]] in Washington, D.C.{{sfn|Light|1999}} (but apparently not currently on display).
* The [[Science Museum, London|Science Museum]] in London has a receiver unit on display.
* The [[Computer History Museum]] in Mountain View, California has three panels (Accumulator #12, Function Table 2 panel 2, and Printer Panel 3) and portable function table C on display (on loan from the Smithsonian Institution).{{sfn|Haigh|Priestley|Rope|2016|pp=46, 264}}
* The [[University of Michigan]] in Ann Arbor has four panels (two accumulators, High-speed Multiplier panel 3, and Master Programmer panel 2),{{sfn|Haigh|Priestley|Rope|2016|pp=46, 264}} salvaged by [[Arthur Burks]].<ref>{{cite web
|url=https://cse.engin.umich.edu/about/beyster-building/eniac-display/
|title=ENIAC display
|accessdate=June 14, 2024
|publisher=University of Mochagan]}}</ref>

* The [[United States Army Ordnance Museum]] at [[Aberdeen Proving Ground]], [[Maryland]], where ENIAC was used, has Portable Function Table A.
* The U.S. Army Field Artillery Museum in [[Fort Sill]], as of October 2014, obtained seven panels of ENIAC that were previously housed by The Perot Group in Plano, Texas.<ref>{{cite news |last1=Meador |first1=Mitch |title=ENIAC: First Generation Of Computation Should Be A Big Attraction At Sill |date=2014-10-29 |work=The Lawton Constitution |url=http://www.swoknews.com/local/eniac-first-generation-computation-should-be-big-attraction-sill |access-date=2015-04-08 |archive-date=April 6, 2015 |archive-url=https://web.archive.org/web/20150406033844/http://www.swoknews.com/local/eniac-first-generation-computation-should-be-big-attraction-sill |url-status=dead }}</ref> There are accumulators #7, #8, #11, and #17;<ref>Haigh. ''et al.'' list accumulators 7, 8, 13, and 17, but 2018 photos show 7, 8, 11, and 17.{{full citation needed|date=October 2020}}</ref> panel #1 and #2 that connected to function table #1,{{sfn|Haigh|Priestley|Rope|2016|pp=46, 264}} and the back of a panel showing its tubes. A module of tubes is also on display.
* The [[United States Military Academy]] at West Point, New York, has one of the data entry terminals from the ENIAC.
* The Heinz Nixdorf Museum in Paderborn, Germany, has three panels (Printer panel 2 and High-speed Function Table){{sfn|Haigh|Priestley|Rope|2016|pp=46, 264}} (on loan from the Smithsonian Institution). In 2014 the museum decided to rebuild one of the accumulator panels – reconstructed part has the look and feel of a simplified counterpart from the original machine.<ref>{{cite web |title=Meet the iPhone's 30-ton ancestor: Inside the project to rebuild one of the first computers |url=https://www.techrepublic.com/article/meet-the-iphones-30-ton-ancestor-inside-the-project-to-rebuild-one-of-the-first-computers/ |website=TechRepublic |date=November 23, 2016 |at=Bringing the Eniac back to life}}</ref><ref>{{cite web |url=http://www.hnf.de/en/museum/die-erfindung-des-computers/eniac-life-size-model-of-the-first-vacuum-tube-computer.html |title=ENIAC – Life-size model of the first vacuum-tube computer |publisher=Heinz Nixdorf Museum |location=Germany |access-date=March 1, 2021 |archive-date=November 5, 2016 |archive-url=https://web.archive.org/web/20161105172749/http://www.hnf.de/en/museum/die-erfindung-des-computers/eniac-life-size-model-of-the-first-vacuum-tube-computer.html |url-status=dead }}</ref>