What technology does CDMA refer to in telecommunications?

CDMA stands for Code-Division Multiple Access, which is a channel access method used by various radio communication technologies. This technology enables multiple users to share the same frequency band by assigning unique codes to each signal. By using these codes, CDMA distinguishes between different users' transmissions, allowing them to occupy the same bandwidth simultaneously without interference. This efficient use of spectrum increases capacity and improves call quality, making it a widely used technology in mobile communication systems, particularly in 3G networks.

The other options do not accurately represent the technology referred to by CDMA. For instance, Computer Data Management Application, Cellular Digital Mobile Access, and Centralized Data Management Approach do not align with the established definitions and functionalities associated with CDMA in telecommunications.