The exhibition includes poignant new artefacts, revealed for the very first time, in the presence of Alan Turing's family.
It also includes the rebuild of Delilah, a secret speech system that Turing began developing for the war effort in 1943. There's also a teddy bear, named by him as Porgy and used to practise his lectures on, and a letter to his mother, twenty years after his death, telling her for the very first time about his "vital importance to the outcome of World War II" and his contribution to the development of the modern computer.
The exhibition has been developed following a high-profile public campaign last year to save a rare collection of Alan Turing's work for the nation.
The collection was secured for Bletchley Park after a collaboration between the private sector and the public sector to provide the funding needed.