Listen to a 1950s era computer sing 'Jingle Bells'

Here's a new version of Jingle Bells you won't hear played in malls, and it's courtesy of one of the oldest computers in history. Turing archive director Jack Copeland and composer Jason Long have recreated Ferranti Mark 1's Christmas performance for the BBC back in 1951. During that broadcast, the first commercially available general-purpose electronic computer (housed at Alan Turing's Computing Machine Laboratory) performed several melodies created using the sounds it used to emit. While three of the songs were recorded, its rendition of Jingle Bells and Good King Wenceslas weren't. Thankfully, one of the engineers present during the event saved a copy of the recording, and that's what Long and Copeland used to recreate the missing Christmas tunes. They started by manually cutting up the audio to get access to the 152 individual computer-generated notes in the recording.