The tabulating machine was the predecessor of the today's computers. These devices were partly only replaced into the 1970er years by computers.

Main operational areas were account processing and calculations of interest (especially with banks), account creation and Offene-Posten-Buchhaltung as well as statistic evaluations.

Tabulating machines worked electromechanically according to the pattern of four-species calculators. The data input took place usually by means of punch cards. "„The programs "“were comparatively inflexible, since they were realized by means of special cables on plug-in boards. By exchange of the plug-in boards different applications could become driven "„"“.

Apart from logical accuracy it was important to keep the machine cycle. Minimum excess meant half speed!

Articles in category "Tabulating machine"

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