Pat Whitaker Joined Cerebos Foods Limited – a LEO III customer – in 1964 – after
graduating with an honours degree in mathematics. Pat had taken the LEO aptitude test
before the job offer and taken the LEO programming course at Hartree House. Pat
worked on the Cerebos sales invoicing suite using Intercode. In 1967 Cerebos replaced
its LEO III with a System 4 computer
