• Oldest software system in continuous use https://www.guinnessworldrecords.com/world-records/636196-oldest-software-system-in-continuous-use 104 comments 25/11/2022

• IRS holds record for oldest software system in continuous use https://www.guinnessworldrecords.com/world-records/636196-oldest-software-system-in-continuous-use 310 comments 1/9/2023 programming
• Oldest software system in continuous use https://www.guinnessworldrecords.com/world-records/636196-oldest-software-system-in-continuous-use 23 comments 3/2/2023 programming

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