#VirtualEnigma is coming to a browser near you to celebrate Alan Turing's Birthday! That means you've only got to wait until 23rd June 2021. It is fully browser based so no install required & should run on most modern systems. From WW2 to WWW @tnmoc @bletchleypark @threejs_org

We’re excited to share that Bletchley Park has been awarded Silver in the Large Visitor Attraction of the Year category at the VisitEngland Awards for Excellence. This national recognition reflects the dedication of our staff and volunteers who work every day to bring the extraordinary story of Bletchley Park to life for visitors from around the world. Thank you to everyone who has visited and supported us. We’re honoured to be recognised among England’s leading visitor attractions and look forward to welcoming many more visitors to our historic site. #VisitEnglandAwards #VisitEngland #AwardsForExcellence #VisitorAttraction #Heritage #BletchleyPark

04 Jun 1944: US Navy capture German submarine U-505 off NW Africa, including its codebooks and Enigma machine.

02 Jun 1943: #BPark Hut 6 break into "Albatross", Enigma key of German 10th Army in Sicily, ahead of planned Allied invasion there in July.

Update for Virtual SG-41: the numeric-only SG-41z now available at sg41.virtualcolossus.co.uk. Used for sending weather reports where the details were encoded as a set of numbers. It's very similar to the SG-41 but with a few interesting omissions which I'll be documenting soon.

Love tech history? Help us keep the fans spinning and the valves glowing! Become a @tnmoc Supporter for just £55 a year. ✅ Exclusive events ✅ Unlimited museum entry ✅ Preserving the world's computing heritage Be part of history : tnmoc.org/become-a-supporter #TechHistory #TNMoC

Breaking Enigma With An FPGA, Just Like At Bletchly Park via @hackaday - very cool to see the video of them demonstrating it using my Virtual Enigma at enigma.virtualcolossus.co.uk ! hackaday.com/2026/05/30/brea…

Another D-Day veteran leaves us. Sad news this afternoon that the SONT are reporting the passing of Alec Penstone. We Will Remember Them

I built Enigma: a 15-minute scrollytelling walkthrough that takes you from Caesar ciphers to actually operating an Enigma machine; and shows you the flaw that let Bletchley break it.

On this day in 1936, Alan Turing submitted his paper "On computable numbers, with an application to the Entscheidungsproblem" where he proposed a machine which could compute any effectively calculable function, the foundations of today's computing. turingarchive.kings.cam.ac.u…

24 May 1943: Signing of Travis-Strong ("BRUSA") agreement, establishing Anglo-American cooperative codebreaking and signals intelligence.

Happy 102nd birthday Hermione Wynn. bletchleypark.org.uk/roll-of… bbc.co.uk/news/articles/c3e2…

Level up your May Half Term at @tnmoc with STEM Bytes 2026! Coding, robotics, VR/AR await. Book: eventbrite.com/e/may-half-te… #STEM #BletchleyPark #MiltonKeynes #CodingForKids #HalfTerm

Hut 3 - Codebreaking Hut Then and now: Hut 3 before restoration in 2013, and today. The original building has been carefully restored to reflect its 1941 condition. Discover the stories of Hut 3 and more at Bletchley Park.

🚨 Call for Entries: The Tony Sale Award 2026! Recognising worldwide excellence in computer conservation. Hardware or software, we want to see your practical projects! 🏆 Awards Event: 29 Sept 2026 @ @tnmoc ⏰ Entry Deadline: 30 June 2026 Enter here: computerconservationsociety.…

Work is progressing on the numeric only SG-41Z model of Virtual Schlüsselgerät 41 used for sending weather information. The print wheels were tricky but are done. Another difference is the SG-41Z only has 5 of the sensing arms (6 on SG-41) and 15 bars on the cage (25 on SG-41)

Love computing history? We’re looking for volunteers to help at our world-class collection! Join our community on Tuesdays, Thursdays, or weekends to support visitors and get hands-on with tech history. Half-day and full-day slots available. Interested? tnmoc.org/volunteer

One ticket, a whole year of discovery at Bletchley Park. Your visit doesn’t end when you leave. Your admission is a 12-month Annual Pass, giving you unlimited return visits for a whole year. Come for the history, learning, or a great day out and return whenever something new catches your interest. Book tickets here: ow.ly/RRw050YSpLU

On this Day! In 1941 The Zuse Z3 was completed by Konrad Zuse in Berlin. I's the world’s first working, program-controlled, and fully automatic digital computer. It was a Turing-complete machine and implemented essential components of modern computing . #ZuseZ3 #TuringComplete

10 May 1940: German invasion of France begins. #BPark begin to see clusters of Enigma indicator settings as theorised by John Herivel.

OH HEC… GUESS WHO’S BACK? 💻 After a year away, the legendary HEC 1 has returned ! The prototype for the UK’s first best-selling business computers (BTM), it’s a true heavyweight of tech history. Come see it alongside Colossus and The Bombe #ComputingHistory #HEC1 #BTM