Computer punched card ca. 1950 used in IBM card reader machines
This is a black and white image of a computer punched card typically used in IBM card reader machines. The card contains two columns of rows of numbers from 0-9 and each row has the same number across. The description on the card reads "What the PUNCHED Hold can do". There are several callout lines drawn from a dark square in the 5th row each describing the square as "Add itself to another number", "Subtract itself from another number", "Post itself", "Eliminate itself", "Select itself", "Produce an automatic balance forward", "Cause a form to feed to a predetermined position or to be ejected automatically, or space from one position to another", and "Cause a total to be printed". Written on verso side of image is "1950" and "NOS-191". Stamped on verso side is "PLEASE CREDIT IBM ARCHIVES".
8 x 10 in.
Identification photograph; Publicity photograph
Punched card systems; Computer industry--History; Electronic data processing--History; Computers--History