024 80-Column Card Punch
1950s - 1960s
X-SB-024 42779 AT
this machine, the Keypunch operator would record computer
program instructions or data onto 80-column punch cards. This
was the first station in the tabulating process.
Donor: Steve Kiblinger, Control Data Corp. (Business Center)
IBM Card Verifier
The card verifier was used to double check the work of the
Keypunch Operators. Because the cost of operating the mainframe
computer was so high, the information was rekeyed and differences
were resolved prior to being submitted for computer processing.
This is the second station in the tabulating process.
Donor: Mike Province
IBM Card Sorting Machine
The IBM Card Sorter was used to group 80-column punch cards
in order to create subtotals. The cards were sorted column
by column into alphanumeric sequence. The card sorting machine
is the fourth station in the tabulating process.
Donor: Diane Daley, San Diego Transit Corporation