  | 
          
            This is a file from the  Wikimedia Commons. Information from its  description page there is shown below.  Commons is a freely licensed media file repository.  You can help. 
           | 
         
        
        
       
        Summary 
        
         
          
           | DescriptionColossus.jpg | 
           
             Colossus codebreaking computer in operation 
            | 
          
          
           | Date | 
           1943 | 
          
          
           | Source | 
            
             
                | 
              This file is from the collections of  The National Archives (United Kingdom), catalogued under document record  FO850/234. For high quality reproductions of any item from The National Archives collection please contact the  image library.
 This tag does not indicate the copyright status of the attached work. A normal  copyright tag is still required. See  Commons:Licensing for more information. 
                
               
                
               | 
              
             
            | 
          
          
           | Author | 
           Unknown | 
          
         
         
        Licensing 
        
         
          | Public domainPublic domainfalsefalse | 
         
        
        
         
            | 
          This artistic work  created by the United Kingdom Government is in the  public domain. This is because it is one of the following: 
           
            - It is a photograph created by the United Kingdom Government and taken prior to 1 June 1957; or
 
            - It was commercially published prior to 1963; or
 
            - It is an artistic work other than a photograph or engraving (e.g. a painting) which was created by the United Kingdom Government prior to 1963.
 
            
           HMSO has declared that the expiry of Crown Copyrights applies worldwide (ref:  HMSO Email Reply)  More information. 
           See also  Copyright and  Crown copyright artistic works. 
            
           
            
           | 
          
           
           | 
         
        
        
        
        
       File usage
       
        The following pages on Schools Wikipedia link to this image (list may be incomplete):
        
        
       
       This file contains additional information, probably added from the digital camera or scanner used to create or digitize it. If the file has been modified from its original state, some details may not fully reflect the modified file.
        
       
      Schools Wikipedia was launched to make learning available to everyone. SOS Children helps those who have nothing and no one, giving them back the famly they have lost and bringing them the very best opportunities for a happy, healthy future. There are many ways to help with SOS Children's Villages.