Casio BN-10

The Business Navigator is a PDA made by Casio

The Business Navigator (BN) is a high-end PDA that is equipped with an extensive PIM suite. The operating system contains a calendar, an address book, an account manager, a spreadsheet, a world clock and a mail and fax program. However, an optional modem (BW-200) is required to operate the mail / fax program. The BN series competed with Psion's PDAs, which were modeled on the design. However, the operating system of the BN cannot be expanded with its own applications, which is why it was not able to achieve popularity like its successor models, the touchscreen-based Pocket Viewer.