TY - BOOK ID - 77868125 TI - Colossus PY - 2006 SN - 0191917931 1280753129 0191513156 1429421517 9781429421515 9780191513152 019284055X 9780192840554 0191578215 PB - Oxford New York Oxford University Press DB - UniCat KW - Lorenz cipher system. KW - World War, 1939-1945 KW - Cryptography KW - Computers KW - Cryptanalysis KW - Cryptology KW - Secret writing KW - Steganography KW - Signs and symbols KW - Symbolism KW - Writing KW - Ciphers KW - Data encryption (Computer science) KW - European War, 1939-1945 KW - Second World War, 1939-1945 KW - World War 2, 1939-1945 KW - World War II, 1939-1945 KW - World War Two, 1939-1945 KW - WW II (World War, 1939-1945) KW - WWII (World War, 1939-1945) KW - History, Modern KW - Lorenz machine (Cryptography) KW - Tunny cipher system KW - Machine ciphers KW - Automatic computers KW - Automatic data processors KW - Computer hardware KW - Computing machines (Computers) KW - Electronic brains KW - Electronic calculating-machines KW - Electronic computers KW - Hardware, Computer KW - Computer systems KW - Cybernetics KW - Machine theory KW - Calculators KW - Cyberspace KW - Electronic intelligence KW - History. KW - Great Britain. KW - GC&CS KW - Lorenz cipher system KW - History KW - World War, 1939-1945 - Cryptography KW - World War, 1939-1945 - Electronic intelligence - Great Britain KW - Cryptography - Germany - History KW - Cryptography - Great Britain - History KW - GC&CS (Government Code and Cypher School) KW - GCHQ (Government Communications Headquarters) KW - G.C.H.Q. (Government Communications Headquarters) KW - Station X (Great Britain) KW - Bletchley Park (Agency : Great Britain) UR - https://www.unicat.be/uniCat?func=search&query=sysid:77868125 AB - The world's first fully-functioning electronic digital computer, Colossus was used during World War 2 at Bletchley Park, where it played an invaluable role cracking enemy codes. Until very recently, much about the Colossus machine was shrouded in secrecy, largely because the codes that were employed remained in use by the British security services until a short time ago. This book only became possible due to the declassification in the US of wartime documents. With an introductory essay on cryptography and the history of code-breaking by Simon Singh, this book reveals the workings of Colossus and the staff at Bletchley Park through personal accounts by those who lived and worked with the computer. Among them is the testimony of Thomas Flowers, who was the architect of Colossus and whose personal account is published here for the first time. ER -