Our first visit to Bletchley Park. On this trip due to time constraints we only visited the National Museum of Computing to see the Colossus computer. We will visit again to see the rest of the Bletchley Park heritage site.
These are the AR88 radio receivers used to intercept the coded German radio messages.
This is the Tunny machine which was built to emulate the German Lorenz machine. This was used after the Colossus machine had found the code key to decrypt the messages.
This is the Colossus computer reconstruction. Colossus is widely regarded as the first digital electronic programmable computer.
The display panel on Colossus.
A few of the thousands of valves.
A look behind the front panel showing the mass of wiring and more valves. The Power consumption is circa 8kW.
This computer is a bit more modern. It is an Analogue Computer of 1970’s vintage. I used to program one of these when I was doing my Electronics degree course!