perforated tape
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Examples
An alternative input device is a perforated tape reader and, more recently, computer storage media (such as floppy disks).
Since perforated tape at the time could record eight bits in one position, it also allowed for a parity bit for error checking if desired.
The message (in Morse code ) was typed onto a piece of perforated tape using a keyboard-like device called the 'Stick Punch'.