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A keypunch is a device for precisely punching holes into stiff paper cards at specific locations as determined by keys struck by a human operator. Other devices included here for that same function include the gang punch, the pantograph punch, and the stamp. The term was also used for similar machines used by humans to transcribe data onto punched tape…
Measurement, Post-WW II IBM keypunches and verifiers for 80-column cards & Overview
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card ibm punched cards data punch program used keypunches could column operator machines 026 verifier character key entry tape 024
| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| Keypunch | is a | device for precisely punching holes into stiff paper cards at specific locations as determined by keys struck by a human operator | 0.90 | text |
| Inforex | instance of | The rise of microprocessors and inexpensive computer terminals led to the development of additional key-to-tape and key-to-disk systems from smaller companies | 0.80 | text |
| Pertec.Keypunches | instance of | The rise of microprocessors and inexpensive computer terminals led to the development of additional key-to-tape and key-to-disk systems from smaller companies | 0.80 | text |
| punched cards were still commonly used for both data | instance of | The rise of microprocessors and inexpensive computer terminals led to the development of additional key-to-tape and key-to-disk systems from smaller companies | 0.80 | text |
| program entry through the 1970s but were rapidly made obsolete by changes in the entry paradigm | instance of | The rise of microprocessors and inexpensive computer terminals led to the development of additional key-to-tape and key-to-disk systems from smaller companies | 0.80 | text |
| by the availability of inexpensive CRT computer terminals | instance of | The rise of microprocessors and inexpensive computer terminals led to the development of additional key-to-tape and key-to-disk systems from smaller companies | 0.80 | text |
| the amount of wear | instance of | of its own based on several variables | 0.80 | text |
| dirt | instance of | of its own based on several variables | 0.80 | text |
| and clearance of the bail contacts within the keyboard | instance of | of its own based on several variables | 0.80 | text |
| as well as factors in the base machine | instance of | of its own based on several variables | 0.80 | text |
| shift | instance of | Special function keys | 0.80 | text |
| release | instance of | Special function keys | 0.80 | text |
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