IBM Type 405 Alphabetic Accounting Machine
Alphabetic Accounting Machine
Punched card machines were at the heart of data processing through the late 1950s. Introduced in 1934, this accumulating and printing machine prepared complete printed reports, consisting of both alphabetic and numerical information, from punched tabulating cards. It was used to list both alphabetic and numerical details from individual tabulating cards or to print classifications and accumulate and print totals.