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{| class="infobox" style="width:22em; float:right; clear:right; margin:0 0 1em 1em; font-size:90%;"
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! colspan="2" style="text-align:center; font-size:125%;" class="fn" | '''Harold J. Foppele'''
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| [[File:Harold Foppele.jpg|center|255px]]
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! Born
| April 30, 1945 Hengelo, The Netherlands
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! Fields
| Theoretical physics Quantum physics Condensed matter physics Quantum optics
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! Institutions
| Managing Director, Transmit Data; Managing Director, Civil Trading<ref>link=https://www.linkedin.com/in/harold-foppele-81083425/</ref> Managing Director, Civil Bankers
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! Alma mater
| Baarns Lyceum (1963) Hewlett Packard, Böblingen (1973-1975) Hewlett Packard, Wokingham (1974-1976) M.I.T Boston, Computer science HAN University of Applied Sciences 
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! Advisor
| Peter Mouthaan
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! Known for
| Fast Computer Technology Quantum measurement theory Weak value amplification Precision sensing and quantum technologies ''Quantum Measurement: Theory and Practice'' (2001)
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Harold Foppele<ref>link=https://www.destentor.nl/veluwe/hoe-de-gaudi-van-putten-een-twintig-meter-hoge-toren-bouwde-en-er-een-pianoconcert-op-gaf~aae7fdc2/224425006/</ref><ref>link=https://worldchess.com/profile/26114</ref> was born on April 30, 1945, in the Netherlands, where his curiosity for technology, science, and learning has driven him ever since.
====Early Years====
He grew up helping his parents in their shoe shop during the 1960s. While it had nothing to do with technology, it taught him discipline, problem-solving, and a strong work ethic, values that stayed with him throughout life.<ref>link=https://baarnseschaakvereniging.nl/tuinschaakbarbecue-weer-groot-feest/</ref><ref>link=https://www.baarnseschaakvereniging.nl/banketbakkerij-veldhuizen-oliebollenschaaktoernooi-weer-groot-succes/</ref>

====Discovering Computers====
In 1975 he encountered computers for the first time, and life changed. He started programming on an HP 9815 with just 8K RAM, later moving to the HP 9825<ref>link-https://www.hpmuseum.org/hp9825.htm</ref> with 24K RAM and string manipulation ROMs, 9835A with 736K Ram and the 9845 with 2MB RAM, cutting-edge at the time.

One of his earliest achievements was writing a program to automate pairings for Swiss chess tournaments. Organizing/pairing 250 players manually took days/weeks; his program did it in 28 seconds. They completed 13 rounds in one day, a world record at the time.

====Academic Journey====
Though he lacked a formal background in computer science initially, his desire to understand computing at a deeper level led him around the world: - Böblingen, Germany – Studied with support from Hewlett-Packard - Wokingham, United Kingdom – Continued my studies near London - Massachusetts Institute of Technology (MIT), USA Completed advanced studies. Focus: computer architecture, processors, memory systems, and logic design

Those were the days following IBM 360 systems, Hollerith punch cards, and paper tape, a revolution in computing history.
====Entrepreneurship====
He went on to found Transmit Data, an OEM software and hardware company that grew to around 30 employees. Today, he still runs a smaller company called Civil Trading to stay active and engaged in business and technology.
====Lifelong Learning====
His curiosity didn’t stop at computers. In 2020 he began studying Chemistry at HAN University of Applied Sciences NL Arnhem/Nijmegen and truly enjoyed it. Although he doesn’t hold a university degree in Quantum Physics, he is passionate about:

- Quantum Science
- Quantum Mechanics
- Quantum Computing

He regularly studies at the University of Amsterdam library (UvA) and he is a member of the Natuurkundig Gezelschap Utrecht (NGU). He enjoys writing articles that share scientific knowledge in an understandable way. 
====Today 2026====
He continues to explore Science, Technology, Quantum theory and Chemistry. Curiosity doesn’t retire. He believes knowledge grows by sharing it.
 For his articles at HandWiki see: 
[[Book:Quantum Collection]] 
[[Physics:Sound speed]]
==References==
{{reflist|3}}

{{Sourceattribution|Harold Foppele|1}}

Biography:Harold Foppele - Revision history

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