Friday Talk – 4 September 2020, 1:15 p.m. for 1:30 start.
Presenter: Dr Ken Lynn
This talk describes the history of the computer and the men and women who made it happen. We start from the mathematicians of the 18th century and the development of mechanical computer through to the mighty mechanical machines of James Babbage in the 19th century and the first female programmer Ada Lovelace. Electrical computers were developed in the second world war for such purpose as code breaking as developed by Alan Turing before his tragic suicide. Gradually digital computers became general purpose machines with much competition between individuals and nations. IBM finally gained a stranglehold on the monster main frame computers of the time. Small personal computers were made possible by the development of the transistor and integrated circuits which could be plugged together to make small machines produced by a new wave of small-time home- made computer fanatics. This gradually turned into the mass marketing of the personal computer as developed by Apple and Microsoft under Steve Jobs and Bill Gates, from lowly beginnings and briefly by IBM. The rise of the digital computer occurred in the working life of the lecturer who used most of the digital machines being discussed.
About the Presenter:
Kenneth John William Lynn
Born in 1940 and educated in Brisbane schools with a B.Sc, MSc. and Ph.D. in physics from the University of Queensland (1973). His PhD was on the propagation of Very Low Frequency (VLF) radio waves via the ionosphere which included the effects of solar x-ray flares. Ken worked in a large laboratory area (now Defence Science and Technology Group) of the Department of Defence in Salisbury, South Australia until retirement as a Principal Research Scientist in 1997. Fields of research covered radio astronomy, radio navigation, radiowave propagation via the ionosphere and ionospheric physics in general. Subsequently Ken has worked for many years as a private contractor to the Department of Defence in support of the Australian Over-The-Horizon radar system as well continuing with private research. He has been able to continue working and publishing in retirement because he can write his own unique computer software and has continuing access to ionospheric data. He and his wife June moved to Noosa in 1999. His hobbies include playing classical piano music and surfing as well as giving Noosa U3A lectures on science, history and music since 2000