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Scottish-born Ms Watson is the co-founder of Code Like a Girl, an organisation that ''exists to encourage females of all ages to get into, or stay in, skilled tech and digital jobs'', she explained.
During yesterday's workshop for 8 to 16-year-olds, she outlined the key roles women have played in the evolution of computer science, including the development of computer code language, and in the Nasa space programme, and the importance of systematic detective work in trying to trace computer coding ''bugs''.
For more information and upcoming events click HERE