A group of veterans will gather at Bletchley Park near Milton Keynes today to celebrate the 70th anniversary of the world's first electronic computer.
The Colossus was developed for British code-breakers during the Second World War to help them read and intercept high-level German army messages.
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Wintry showers will continue to affect East Anglia on Sunday, elsewhere it should be largely dry. Some sunny intervals are likely.
The wintry weather is continuing across the Anglia region with sleet and snow in many areas. Here is a selection of pictures from viewers.
Cold with further wintry showers which may merge into longer periods of snow after midnight.