Everything about Keypunch
Device for punching holes into paper cards
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 media. Wikipedia →
🧠Start here: a 6-step reading path
- Read the overview: KeypunchA 5-minute orientation
- Pick up a classic book: KeypunchingThe most-reprinted book on the subject
- Read the landmark paper: A Talking Keypunch for Blind ProgrammersCited 3 times
- Go sideways: Unit record equipmentA closely related topic
- Go sideways: Computer programming in the punched card eraA closely related topic
đź“– Definitions
Noun A mechanical device whose keys are pressed, individually or in combination, to punch holes in punched cards or paper tape that correspond to particular characters.
Noun An electric machine with a keyboard that has the same function.
Verb To use such a device or machine
🗂️ The subject at a glance
🏆 Landmark papers (most cited)
A Talking Keypunch for Blind Programmers
An anomaly found during the implementation of a 2-dimensional dataflow editor for constructing dataflow graphs in NAKL: not another keypunch language
Is Keypunch Verification Really Necessary?
Identification of IBM Keypunch Machines by Their Printed Products
Vanguard of National Development: Keypunch Operators and the Gendered Dimensions of Early Computing in South Korea
đź“š Books worth reading
- 📕KeypunchingPeggy L. Hanson · 1967
Keypunching and verifyingMario V. Farina · 1973- 📕Easily applied principles of keypunchingEleanor A. Payne · 1970
- 📕Manual for coding and keypunching biological dataU.S National Oceanographic Data Center. · 1965
Ranked by number of editions on Open Library, a rough measure of how lasting a book is.
đź”— Related topics
- Unit record equipment Unit record equipment, electric accounting machines (EAM), or tab equipment were electromechanical machines used for performing data processing. Used well…
- Computer programming in the punched card era From the invention of computer programming languages up to the mid-1970s, most computer programmers created, edited and stored their programs line by line…
- Two-pass verification Two-pass verification, also called double data entry, is a data entry quality control method that was originally employed when data records were entered…
- Punched card A punched card (also punch card) is a stiff paper-based medium used to store digital information via the presence or absence of holes in predefined positions…
- Punched card input/output A computer punched card reader or just computer card reader is a computer input device used to read computer programs in either source or executable form…
- Tabulating machine The tabulating machine was an electromechanical machine designed to assist in summarizing information stored on punched cards. Invented by Herman Hollerith…
- Punched card sorter A punched card sorter is a machine for sorting decks of punched cards. Sorting was a major activity in most facilities that processed data on punched cards…
- IBM System/3 The IBM System/3 is an IBM midrange computer that was introduced in 1969, and marketed until 1985. It was produced by IBM Rochester in Minnesota as a low-end…