Mary Lee Berners-Lee obituary

Computer scientist who became one of the world’s first freelance programmers in the 1950s

The computer scientist Mary Lee Berners-Lee, who has died aged 93, was on the programming team for the computer that in 1951 became the first in the world to be sold commercially: the Ferranti Mark I. She led a successful campaign at Ferranti for equal pay for male and female programmers, almost two decades before the Equal Pay Act came into force. As a young mother in the mid-1950s she set up on her own as a home-based software consultant, making her one of the world’s first freelance programmers.

Modest about her own pioneering achievements, she is on record (in an interview with computer historian Janet Abbate) as saying that her biggest contribution was to be “the grandmother of the web”. In 1989 Tim Berners-Lee (now Sir Tim), the eldest of her four children, proposed a system to access and exchange documents across the internet, and soon afterwards built the first web server, website and browser.