Nokia PC Suite

Nokia PC Suite is a discontinued software package used to establish an interface between Nokia mobile devices and computers that run the Microsoft Windows operating system. Its first release was in 1997, originally called Nokia Data Suite. It was replaced by Nokia Suite and integrated into the Ovi service suite.
Functionality.
Nokia PC Suite can be used to transfer music, photos and applications. It can also be used to send Short Message Service (SMS) messages or act as a modem to connect the computer to the Internet. A mobile phone can be connected by USB, Bluetooth, or infrared.
Some older Nokia phones lack compatibility with later versions of the PC Suite. The official site supplies a table that matches each phone model with the most recent compatible version.
The latest version of Nokia PC Suite also contains several integrated applications, including the File Manager, Application Installer and "Nokia Communication Centre" data viewer. PC Suite users can also access on-device features (e.g. battery, memory and call handling), as well as Nokia PC Sync functionality.
History.
Some of the earliest devices that worked with Nokia Data Suite were Nokia 3110, Nokia 6110 and Nokia 8110.
Nokia PC Suite has been unimproved, and was replaced by Nokia's next generation phone suite software, Nokia Suite, which supported other platforms in addition to Windows.
Nokia Suite drops the Lotus Notes client sync support which is present in Nokia PC Suite, instead requiring the user to use Lotus Notes' Traveler software. This must be installed and maintained on the Lotus Notes server; synchronization using PC Suite works from the phone to the user's PC, while synchronization on a phone which has Nokia Suite must use third party software.
Limitations.
The backup feature in PC Suite uses a non-documented binary file format (.nbu), which can only be used to restore to a phone through the proprietary client. This means that the data can only be accessed by doing a restore to a working phone. Third-party programs (either commercial or free) can be used to read the file, but they greatly vary in the amount of information they can retrieve.
Nokia PC Sync.
Nokia PC Sync allows the user to synchronize contacts, calendar, notes, to-do items, e-mails, bookmarks and files/folders between a supported Nokia mobile phone and:
PC Sync 7.0.9.2 contained a major bug, truncating street addresses which have been edited on the PC to run over more than one line, when synchronized back to the phone. It was possible to lose large parts of your contacts' address information due to this issue. 
Nokia Maps.
Nokia PC Suite is unable to add or update maps and voices for the Nokia Maps application. This requires Nokia Map Loader or Nokia Suite; both require Microsoft Windows with the .NET Framework installed. However, it is possible to download maps for Nokia Maps without need for Nokia Map Loader or Nokia Suite by pointing a web browser directly to the map files on Nokia's Maps server.