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Virtual Lorenz

An online Virtual Lorenz that can be used by anyone wanting to experience sending and receiving top-secret Second World War communications was unveiled at TNMOC in celebration of the centenary of Bill Tutte.

Lorenz book launch

Capt Jerry Roberts’ autobiography Lorenz, telling the story of the breaking of Hitler’s most secret cipher, launched at TNMOC in the presence of Colossus veterans whose work helped in the decrypting process.

Margaret Sale praised by Prime Minister

Margaret Sale has been has been honoured with a Point of Light award by No 10 Downing Street for ensuring that the wartime contribution of Bletchley Park is not forgotten.

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D-Day - stepping back in time

D-Day will be remembered at TNMOC on Sunday 4 June 2017 with the help of Home Guard re-enactors, 1940s vehicles, Vickers gun emplacement - and of course the working rebuild Colossus.

FUZE Coding Workshops

A hands-on and exciting coding club for ages 7 to 14. Come and learn all about coding and just how much fun it can be on 31 May and 1 June 2017 with FUZE. Learn to code simple programs, control electronic circuits, interact with sensors and even code a robot arm.

Premium Bonds at 60 - the Colossus connection

On 29 June 2017, to celebrate the 60th anniversary of the first Premium Bond prize, we will feature a reconstruction of ERNIE’s ancestor that demonstrated to an enthralled 1950s public how electronic noise can be used to generate random numbers.

Current Projects Subscribe to Current projects

EDSAC arithmetic unit on the move

Last month, one quarter of the reconstructed EDSAC - the arithmetic unit - was moved from a home workshop in Cambridge to be integrated with the main part of the machine at TNMOC.

Obeying Orders

Chris Burton introduces a video update on the latest stage of the EDSAC reconstruction: integrating the sub units and getting to grips with commissioning the whole system.

Searching for Lost Systems

The BCL Molecular Computer was first introduced in 1971 and was sold and used in various forms until the 1990s. But does one still exist today? Who can claim to be the last user?

Notes from the Museum Subscribe to Notes from the Museum

Wanted: Learning Guides

We are looking to expand our pool of dedicated learning guides to deliver our highly popular schools programme. The role is weekdays during term time, but there are no set or guaranteed hours each week.

John Cane, Colossus engineer, 1924-2017

Having worked at Dollis Hill on Colossus, John Cane moved to Bletchley Park to keep those top-secret computers running during the war. Here is the tribute from his family and his first public interview in 2014.

Review of Jerry Roberts' Lorenz

A review of Jerry Robert's autobiography Lorenz, his story of working in the Testery, a group of linguists who broke Hitler's most secret cipher, Lorenz, by hand.

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