Punch Card Programming - Computerphile
How did punch card systems work? Professor Brailsford delves further into the era of mainframe computing with this hands-on look at punch cards.
Extra Material on Punch Cards: http://youtu.be/lkSGMrH5Kic
Extra Material - behind the scenes: http://youtu.be/Wi326Leuemg
Mainframes to Unix: http://www.youtube.com/watch?v=-rPPqm44xLs
Near to the Metal: http://www.youtube.com/watch?v=uNuFVq5QeRk
Addendum: "ICL punched cards actually have 12 rows -- not 11 as stated in the film. Choosing any two hole positions out of 12 gives 66 combinations -- which can represent 66 different characters. This in turn is more than enough for the 64 possibilities of a 6-bit character held in ICL computer memory. Also, some special characters could actually utilise three hole configurations adding further to the possibilities."
http://www.facebook.com/computerphile
https://twitter.com/computer_phile
This video was filmed and edited by Sean Riley.
Computer Science at the University of Nottingham: http://bit.ly/nottscomputer
Computerphile is a sister project to Brady Haran's Numberphile. See the full list of Brady's video projects at: http://bit.ly/bradychannels
Видео Punch Card Programming - Computerphile канала Computerphile
Extra Material on Punch Cards: http://youtu.be/lkSGMrH5Kic
Extra Material - behind the scenes: http://youtu.be/Wi326Leuemg
Mainframes to Unix: http://www.youtube.com/watch?v=-rPPqm44xLs
Near to the Metal: http://www.youtube.com/watch?v=uNuFVq5QeRk
Addendum: "ICL punched cards actually have 12 rows -- not 11 as stated in the film. Choosing any two hole positions out of 12 gives 66 combinations -- which can represent 66 different characters. This in turn is more than enough for the 64 possibilities of a 6-bit character held in ICL computer memory. Also, some special characters could actually utilise three hole configurations adding further to the possibilities."
http://www.facebook.com/computerphile
https://twitter.com/computer_phile
This video was filmed and edited by Sean Riley.
Computer Science at the University of Nottingham: http://bit.ly/nottscomputer
Computerphile is a sister project to Brady Haran's Numberphile. See the full list of Brady's video projects at: http://bit.ly/bradychannels
Видео Punch Card Programming - Computerphile канала Computerphile
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