![Stumbled across the first commercially available calculator, used by Harvard astronomers at the turn of the last century. “The Millionaire” debuted in 1899, and could multiply two eight digit numbers in under Stumbled across the first commercially available calculator, used by Harvard astronomers at the turn of the last century. “The Millionaire” debuted in 1899, and could multiply two eight digit numbers in under](https://i.redd.it/umlm4p9o0rd41.jpg)
Stumbled across the first commercially available calculator, used by Harvard astronomers at the turn of the last century. “The Millionaire” debuted in 1899, and could multiply two eight digit numbers in under
IOP Publishing - The world's first program-controlled calculator is presented to Harvard University by IBM #OnThisDay in 1944. https://bit.ly/2E0wtnt | Facebook
![Key Aspects of the Development of the Harvard Mark 1 and its Software by Howard Aiken and Grace Hopper : History of Information Key Aspects of the Development of the Harvard Mark 1 and its Software by Howard Aiken and Grace Hopper : History of Information](https://historyofinformation.com/images/Aiken_&_Hopper_Manual_dust_jacket.jpg)
Key Aspects of the Development of the Harvard Mark 1 and its Software by Howard Aiken and Grace Hopper : History of Information
![Harvard University's IBM automatic Sequence Controlled Calculator | 102630710 | Computer History Museum Harvard University's IBM automatic Sequence Controlled Calculator | 102630710 | Computer History Museum](https://archive.computerhistory.org/resources/still-image/IBM/IBM_SSEC/harvard_university.part2_ibm_auto_seq_control.caaug_1944.102630710.lg.jpg)
Harvard University's IBM automatic Sequence Controlled Calculator | 102630710 | Computer History Museum
![Figure 1 from Howard Aiken's Third Machine: The Harvard Mark III Calculator or Aiken-Dahlgren Electronic Calculator | Semantic Scholar Figure 1 from Howard Aiken's Third Machine: The Harvard Mark III Calculator or Aiken-Dahlgren Electronic Calculator | Semantic Scholar](https://d3i71xaburhd42.cloudfront.net/0ca4a0f8b253c5d73abe64d3028fa03723e77638/1-Figure1-1.png)
Figure 1 from Howard Aiken's Third Machine: The Harvard Mark III Calculator or Aiken-Dahlgren Electronic Calculator | Semantic Scholar
![HARVARD UNIVERSITY] | Aiken, Howard Hathaway, and Grace Murray Hopper. A Manual of Operation for the Automatic Sequence Controlled Calculator by the Staff of the Computation Laboratory. Cambridge, MA: Harvard University Press, HARVARD UNIVERSITY] | Aiken, Howard Hathaway, and Grace Murray Hopper. A Manual of Operation for the Automatic Sequence Controlled Calculator by the Staff of the Computation Laboratory. Cambridge, MA: Harvard University Press,](https://sothebys-md.brightspotcdn.com/dims4/default/a397caa/2147483647/strip/true/crop/2000x2000+0+0/resize/385x385!/quality/90/?url=http%3A%2F%2Fsothebys-brightspot.s3.amazonaws.com%2Fmedia-desk%2Fa9%2Fea%2Fe12e2fa047a6abeb6552d467b937%2Fn10087-193-web.jpg)