Ive just added a link to the The National Museum of Computing.
Here is a description of the National Museum of Computing taken from their website.
The National Museum of Computing is dedicated to showing the development of computing in its broadest sense from the pioneering war time efforts that resulted in Colossus, to the products and systems we use today. The museum is part of the whole Bletchley Park experience, and all visitors to the park can visit the museum free of charge when it is open.
The museum houses the Colossus computer, an exhibition of the most complex code cracking activities performed at the Park, and enhances the Park visitors’ experience by continuing the history of the development of computing from the 1940s to the present day.
Also, dont forget to follow @tnmoc and @bletchelypark on Twitter.