Hollerith Type 3-S Tabulator

The first tabulating machine with direct subtraction

Announcement / Release
around 1922
Discontinuation
around 1927
Birth Place
New York, New York, United States of America

About

The Direct Subtraction Tabulating Accounting Machine, Type 3-S is a multiple subtracting, adding, classifying, and printing machine which automatically produces complete printed reports from punched tabulating cards. It prints classifications, lists details, computes and prints totals, grand totals, and net balances. An automatic control causes the machine to stop at the completion of each data group; the total and group indication are recorded, then the machine clears itself and starts on the next group. An Automated Plugboard eliminates the necessity of plugging the machine just before printing the reports. This type of accounting machine is furnished in three models of various printing capacities -- 4, 5 and 7 printing banks -- all of which list from 75 to 120 cards a minute and tabulate from 75 to 150 cards a minute. It may be equipped with a summary punch.

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