punched card verifier

См. также в других словарях:

• Key punch — A key punch is a device for entering data into punched cards by precisely punching holes at locations designated by the keys struck by the operator. Early keypunches were manual devices. Later keypunches were mechanized, often resembled a small… …   Wikipedia

• List of IBM products — The following is a list of notable products from the International Business Machines (IBM) Corporation and its predecessor corporations, beginning in the 1890s, and spanning punched card machinery, time clocks, and typewriters, via mainframe… …   Wikipedia

• Unit record equipment — Before the advent of electronic computers, data processing was performed using electromechanical devices called unit record equipment, electric accounting machines (EAM) or tabulating machines. Unit record machines were as ubiquitous in industry… …   Wikipedia

• Barcode — For the taxonomic method, see DNA barcoding. A UPC A barcode symbol A barcode is an optical machine readable representation of data, which shows data about the object to which it attaches. Originally barcodes represented data by varying the… …   Wikipedia

• 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 onto sequential 80 column Hollerith cards with a keypunch. In the first pass through a set of …   Wikipedia

• Fortran — Infobox programming language name = Fortran caption = The Fortran Automatic Coding System for the IBM 704 (October 15, 1956), the first Programmer s Reference Manual for Fortran paradigm = multi paradigm: procedural, imperative, structured,… …   Wikipedia