The machine was programmed primarily with a plastic tape that moved synchronously with the typewriter carriage.

Programs were only executed as the machine typed or spaced over a column - tabbing or carriage returning was not recognised.

The PGM field allowed a program instruction - a jump in the form of a "jump" to a new column then auto printout of a calculated field (including decimal place control) as well as punched card control, etc.

Most machines were used for some type of order-entry/invoicing application, providing a hard-copy invoice and a punched card that could be processed further on some other system.

They struck an issue with the 632 because they sold units by the dozen, but because the 632 worked in decimal, rounding meant they were losing money.