Harvard Mark II Computer - Search Videos

In 1947, engineers working on the Harvard University Mark II computer discovered that a malfunction was caused by a real moth trapped inside the machine’s relay system. The insect was carefully removed and taped into the logbook with the note: “First actual case of bug being found.” The incident was famously documented by computer pioneer Grace Hopper, and the term “debugging” quickly entered engineering language. While “bug” had been used informally before, this moment permanently embedded the

In 1947, engineers working on the Harvard University Mark II computer discovered that a malfunction was caused by a real moth trapped inside the machine’s relay system. The insect was carefully removed and taped into the logbook with the note: “First actual case of bug being found.” The incident was famously documented by computer pioneer Grace Hopper, and the term “debugging” quickly entered engineering language. While “bug” had been used informally before, this moment permanently embedded the

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Harvard’s Mark 1 finds its new home

Harvard’s Mark 1 finds its new home

The Mark I, one of the world’s first programmable computers, was designed by Harvard mathematician Howard Aiken in 1937. It recently moved from the Science Center to the newly completed Science and Engineering Complex. | Harvard University

The Mark I, one of the world’s first programmable computers, was designed by Harvard mathematician Howard Aiken in 1937. It recently moved from the Science Center to the newly completed Science and Engineering Complex. | Harvard University

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Computers - Harvard University

Computers - Harvard University

Harvard Mark I, 2022 with Professor Harry Lewis "The Harvard Mark I, or IBM Automatic Sequence Controlled Calculator (ASCC), was a general-purpose electromechanical computer used in the war effort during the last part of World War II. One of the first programs to run on the Mark I was initiated on 29 March 1944 by John von Neumann. At that time, von Neumann was working on the Manhattan Project, and needed to determine whether implosion was a viable choice to detonate the atomic bomb that would b

Harvard Mark I, 2022 with Professor Harry Lewis "The Harvard Mark I, or IBM Automatic Sequence Controlled Calculator (ASCC), was a general-purpose electromechanical computer used in the war effort during the last part of World War II. One of the first programs to run on the Mark I was initiated on 29 March 1944 by John von Neumann. At that time, von Neumann was working on the Manhattan Project, and needed to determine whether implosion was a viable choice to detonate the atomic bomb that would b

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Incoming Assistant Professor Marc Aidinoff explains the history of the Mark I computer and how it changed the way that Harvard thinks about science. | Harvard University

Incoming Assistant Professor Marc Aidinoff explains the history of the Mark I computer and how it changed the way that Harvard thinks about science. | Harvard University

9.7K viewsMar 5, 2025

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The First Computer "Bug" Was Literal: The term "computer bug" comes from a 1947 incident where a team working on the Harvard Mark II computer found a moth that had flown into a relay, causing a malfunction. The moth was carefully removed and taped into the logbook with the entry "First actual case of bug being found." | WiredWorld

The First Computer "Bug" Was Literal: The term "computer bug" comes from a 1947 incident where a team working on the Harvard Mark II computer found a moth that had flown into a relay, causing a malfunction. The moth was carefully removed and taped into the logbook with the entry "First actual case of bug being found." | WiredWorld

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The "Human Computer" Behind the Manhattan Project: John Von Neumann

interestingengineering.com

In 1947, engineers at Harvard University were working on a large computer called the Harvard Mark II. One day, the machine suddenly stopped working properly. When the engineers opened it up to investigate, they found something unusual inside the computer’s hardware… 🪲 A real moth was trapped in one of the computer’s relays! They carefully removed it and taped it into their logbook, labeling it: “First actual case of bug being found.” 😄 That note became famous — and the word “bug” started being

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Daily dose of WisDumb on Instagram: "Ever wondered how the computer bug got its name? Back in 1947, Harvard’s Mark II computer started acting up and engineers found the culprit - an actual moth stuck in a relay. They gently removed it, taped it to the logbook and labeled it the 'first actual computer bug' - and the term stuck. That single literal bug turned into a metaphor that every developer still lives by - proof that sometimes you have to catch the smallest issues to keep giant machines runn

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Instagramdaily.wisdumb

Algo Brief on Instagram: "Interesting fact: The first "bug" in computing history was a literal moth found trapped in a Relay of the Harvard Mark II computer in 1947. Grace Hopper and her team taped the moth into their logbook, noting it was the "first actual case of bug being found," which popularized the term we use today."

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