They have a working (!!) replica of the Colossus codebreaking computer that's open every day of the week. As a computer nerd, I really wanted to like this museum but they make it so hard :-(
PRICE: Seeing only the Colossus exhibit costs £3. The concessions price for students is £2. (You can also get the discounted price if you're an old white man and the old white man who accepts payment likes you.) Cash only.
EXHIBIT: The placards / descriptions are poorly written and hard to follow even for technical audiences. However, it's still cool to see the paper tape run through the machine, making relays tick and indicator lights flash.
TIME: You can get through the Colossus exhibit in about 30 minutes. Heat from the vacuum tubes and lack of ventilation makes the whole place really stuffy, so you won't want to stay longer anyway. read more