IBM 407

The IBM 407 was introduced in 1949 tabulating machine.

History and Technology

The booking engine could perform automated commercial tasks. They thus served in companies similar purposes such as computer systems in the present. The marketing for the IBM 407 was abandoned in 1976. With the introduction of the IBM 1401 in 1959 began the period with slightly outdated technology, and the tabulating machines were gradually replaced. At almost the same as the IBM 407 1948 IBM 604 was introduced. It is a cross between a tabulating machine and a general purpose computer.

The IBM 407 was the last and highest quality of complete electro-mechanical tabulating machines from IBM. She had a punched-card reader and a printer integrated. There were two models with read speeds of 100, respectively 150 punched cards per minute. In the machine processing steps were programmed as reading a punched-card stack, adding the coded numbers on the punch cards, etc. The programming was done with inserted cables on the pegboard. The monthly rent for the machine was $ 800 to $ 920