Downtime message

Due to planned maintenance taking place on Thursday 9th October between 9:00 AM and 1:00 PM, services might be disrupted or temporarily unavailable. We apologise for any inconvenience.

Adrodd fel Amhriodol

Testun Gwreiddiol (Anodiad: EPW057606 / 1385123)

' Tommy Flowers designed and co-developed Colossus, the World's first programmable electronic computer here: Dollis Hill, the GPO Research Centre in Brook Lane, during 1943. He worked at the Centre from 1930. http://cryptomuseum.com/people/tommy_flowers.htm '

Dywedwch wrthym pam mae’r cynnwys hwn yn amhriodol *(gofynnol)

Dewis categori *(gofynnol)

Os ‘Arall’ rhowch fanylion (dewisol)

Eich enw (dewisol)

Eich cyfeiriad e-bost (dewisol)

CAPTCHA

This question is for testing whether or not you are a human visitor and to prevent automated spam submissions.