In a distributed computing system, the primary purpose of data serialization for multimedia data is to convert it into a sequence of bytes. This conversion is crucial for the efficient transmission and storage of multimedia data across different nodes or systems. Serialization ensures that multimedia data, such as images, audio, or video, can be easily transmitted, stored, and reconstructed. While compression, encoding, and encryption are important aspects of handling multimedia data, serialization specifically focuses on the transformation into a byte stream format for standardized communication.