Tech Tangents | 1920s Monroe Mechanical Calculator @TechTangents | Uploaded May 2022 | Updated October 2024, 9 hours ago.
A Monroe calculator, or adding machine, is one I've been seeking out since I got my Burroughs and Comptometer a few years ago. I had the chance to pick one up a few months ago and I have been really impressed with it!

Related Videos:

Comptometer (And 9's compliment explanation): youtube.com/watch?v=fe-9uTVMQlo
Burroughs Portable: youtube.com/watch?v=avqazTba1qI
Bohn Contex 10: youtube.com/watch?v=cJk02bMj6Yk



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