--- title: Mauchly And Eckert’s Other Computers | daily.dev description: John Mauchly and J. Presper Eckert, best known for ENIAC, went on to build several lesser-known machines afterward. BINAC, arguably the first commercialized... canonical: https://daily.dev/posts/mauchly-and-eckert-s-other-computers-qllfr2wi0 twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Mauchly And Eckert’s Other Computers | daily.dev og:description: John Mauchly and J. Presper Eckert, best known for ENIAC, went on to build several lesser-known machines afterward. BINAC, arguably the first commercialized... og:url: https://daily.dev/posts/mauchly-and-eckert-s-other-computers-qllfr2wi0 og:image: https://api.daily.dev/og/posts/qlLFr2wi0.png og:image:alt: Mauchly And Eckert’s Other Computers og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Mauchly And Eckert’s Other Computers **[Hackaday](https://daily.dev/sources/hackaday)** · 2 min read · 0 upvotes · 0 comments ## Summary John Mauchly and J. Presper Eckert, best known for ENIAC, went on to build several lesser-known machines afterward. BINAC, arguably the first commercialized digital computer, reportedly never worked correctly after delivery and was mishandled during a botched rebuild by the customer. Skeduflo, a 75-pound analog computer, used a patchboard and potentiometers for critical path method analysis with results plotted on an analog plotter. UNIVAC and EDVAC, by contrast, achieved lasting influence and success. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Questions this post answers ### What was BINAC and why is it historically significant? BINAC was a computer built by John Mauchly and J. Presper Eckert after ENIAC, and it can claim to be the first digital computer that was commercialized. Despite this milestone, it was fairly limited and reportedly never worked correctly after delivery; the customer disassembled it, shipped it to a secure facility, and had a newly graduated engineer attempt to rebuild it, without success. _daily.dev surfaces stories like this for developers curious about computing's earliest commercial roots._ ### What did the Skeduflo computer do? Skeduflo was a 75-pound analog computer built for critical path method (CPM) analysis, one of the lesser-known machines created by ENIAC inventors Mauchly and Eckert. Users set up problems using a patchboard and potentiometers, and results were output on an analog plotter, according to a PMI interview with Morgan Walker and Jim Kelley. _Readers tracing the origins of project-management techniques like CPM can find such history on daily.dev._ ## Similar posts on daily.dev - [Come for ENIAC, Stay for UNIVAC and Skeduflo](https://daily.dev/posts/come-for-eniac-stay-for-univac-and-skeduflo-y6zgzxihl) · Hacker News · 0 upvotes · 0 comments - [ENIAC, the General-Purpose Digital Computer, Is 80](https://daily.dev/posts/eniac-the-general-purpose-digital-computer-is-80-4tgarj8js) · Hacker News · 0 upvotes · 0 comments - [What Can You Run On A 1960s Univac? Anything You’re Willing To Wait For\!](https://daily.dev/posts/what-can-you-run-on-a-1960s-univac-anything-you-re-willing-to-wait-for--6drova9vz) · Hackaday · 0 upvotes · 0 comments - [Running a Minecraft Server and more on a 1960s UNIVAC Computer](https://daily.dev/posts/running-a-minecraft-server-and-more-on-a-1960s-univac-computer-osa7hpz7h) · Lobsters · 0 upvotes · 0 comments --- Tags: [#retrocomputing](https://daily.dev/tags/retrocomputing), [#computing-history](https://daily.dev/tags/computing-history) [View this post on daily.dev](https://daily.dev/posts/mauchly-and-eckert-s-other-computers-qllfr2wi0) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Mauchly And Eckert’s Other Computers","url":"https://daily.dev/posts/mauchly-and-eckert-s-other-computers-qllfr2wi0","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/mauchly-and-eckert-s-other-computers-qllfr2wi0"},"datePublished":"2026-08-14T08:02:14.274Z","dateModified":"2026-08-14T08:02:34.231Z","description":"John Mauchly and J. 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