Helmut Schreyer
Helmut Schreyer | |
---|---|
Born | Santa Teresa (Rio de Janeiro) | 4 July 1912
Citizenship | German, Brazilian |
Alma mater | Technical University of Berlin |
Known for | Electrical circuit technology, Z1, Z3 |
Scientific career | |
Fields | Electrical engineering, Computer science |
Institutions | Institut für Schwingungsforschung (i.e. radio-frequency engineering; part of the Technical University of Berlin), Instituto Militar de Engenharia |
Helmut Theodor Schreyer (4 July 1912 – 12 December 1984) was a German inventor. He is mostly known for his work on the Z3, the world's first programmable computer.
Early life
Helmut Schreyer was the son of the minister Paul Schreyer and Martha. When his father started to work in a parish in Mosbach, the young Schreyer went to a school there. He earned his Abitur in 1933.
Career
Schreyer started to study electronic and telecommunications engineering at the
World War II
In 1939, when
Schreyer planned to build a computer memory for 1000 words in 1943, that was to contain several thousand electron tubes, but the war put an end to all larger plans.[5] In 1944 he built an electrical circuit to convert decimal to binary numbers.[6]
After World War II
Schreyer had fled to Vienna in the final days of World War II, where he went to the Brazilian Embassy, and he was issued with a Brazilian passport. He then fled to Brazil, where he was offered work at the Army's Technical School (ETE). In 1950 Schreyer's book on electronic digital computers was published in the Portuguese language by the ETE.[7]
While teaching at the Pontifical Catholic University of Rio de Janeiro (PUC-Rio) Schreyer alongside other faculty members of staff, supervised students for an end-of-term electronics project. The computer that was assembled by the students, nicknamed Lourinha (blondie), was the first computer to be designed and assembled in Brazil.[8]
Publications
- Technische Rechenmaschine, 1939 (i.e. Technical computing machines, cf. Brian Randell, ed.: The origins of digital computers. Selected papers. Springer, Berlin, Heidelberg, 1982).
- Das Röhrenrelais und seine Schaltungstechnik. Berlin Institute of Technology, Dissertation 1941.
(i.e. Vacuum tube relays and circuit technology) - Patent: Schaltungsanordnung eines elektrischen Kombinationsspeicherwerkes. Patent application on June 11, 1943 (published in December 1955).
(i.e. Circuit layout for combinatorial electronic memory) Espacenet-Link. - An Experimental Model of an Electronic Computer. IEEE Annals of the History of Computing 12 #3 (July–September 1990): 187–197.
(Description of the development and construction of a model to test the feasibility of an electronic computer; written in 1977 about his work during the period 1941–1943.) - Medidas Em Comunicaçoes
- Circuitos de Comutação (computadores Eletrônicos Digitais), 1966
- Envio Imediato Circuitos de Comutação. Oficina do I.M.E., Rio de Janeiro 1966
- Computadores Eletrônicos Digitais, 1967
References
- ISBN 9781000840759.
- ISBN 9781000840759.
- ISBN 9780198831754.
- ^ ""Helmut Schreyer" at the University of Berlin". Archived from the original on 2012-03-27. Retrieved 2011-07-14.
- ISBN 3540002170. p. 116.
- ^ ""Helmut Schreyer" at the University of Berlin". Archived from the original on 2012-03-27. Retrieved 2011-07-14.
- ISBN 9781000840759.
- ISBN 9781000840759.